CVE-2022-32221

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-12-06. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated

Also known asEUVD-2022-53422 (ENISA EUVD) · GHSA-grfr-78m7-q35q (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 5.1%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

When doing HTTP(S) transfers, libcurl might erroneously use the read callback (CURLOPT_READFUNCTION) to ask for data to send, even when the CURLOPT_POSTFIELDS option has been set, if the same handle previously was used to issue a PUT request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the subsequent POST request. The problem exists in the logic for a reused handle when it is changed from a PUT to a POST.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
5.1%
EPSS %ILE
92nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
5.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

December 5, 2022

Last Modified

October 14, 2026

Advisory Details (10)

Auto-updated Nov 8, 2026
Patch available.
Web page

About the security content of macOS Ventura 13.2 - Apple Support

https://support.apple.com/kb/HT213605
Web page

About the security content of macOS Monterey 12.6.3 - Apple Support

https://support.apple.com/kb/HT213604
Web page

curl: Multiple Vulnerabilities (GLSA 202212-01) — Gentoo security

https://security.gentoo.org/glsa/202212-01
Web pageMentions a patch (unverified)

[SECURITY] [DLA 3288-1] curl security update

https://lists.debian.org/debian-lts-announce/2023/01/msg00028.html
Web page

oss-security - curl: CVE-2023-28322: more POST-after-PUT confusion

http://www.openwall.com/lists/oss-security/2023/05/17/4
Web page

Full Disclosure: APPLE-SA-2023-01-23-5 macOS Monterey 12.6.3

http://seclists.org/fulldisclosure/2023/Jan/20
Web page

Full Disclosure: APPLE-SA-2023-01-23-4 macOS Ventura 13.2

http://seclists.org/fulldisclosure/2023/Jan/19

Patch Availability(7)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntumysql-source-8.0 (8.0.32-0buntu0.22.10.1) @ kinetic2026-11-12ubuntu
ubuntucurl (7.47.0-1ubuntu2.19+esm6) @ xenial2026-11-12ubuntu
ubuntucurl (7.85.0-1ubuntu0.1) @ kinetic2026-11-12ubuntu
redhatcurl-0:7.76.1-14.el9_0.62023-07-18redhat
redhatcurl-0:7.76.1-19.el9_1.12023-01-23redhat
redhatjbcs-httpd24-curl-0:7.86.0-2.el7jbcs2022-12-08redhat
redhatjbcs-httpd24-curl2022-12-08redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(15 across 15 ecosystems)
Alpine:v3.15(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.80.0-r4: fixed in 7.80.0-r4
—
Alpine:v3.16(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.83.1-r4: fixed in 7.83.1-r4
—
Alpine:v3.17(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
curl7.64.0-4, 7.64.0-4+deb10u1, 7.64.0-4+deb10u2, 7.64.0-4+deb10u3
  • every version up to 7.64.0-4+deb10u4: fixed in 7.64.0-4+deb10u4
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
curl7.74.0-1.3, 7.74.0-1.3+deb11u1, 7.74.0-1.3+deb11u2, 7.74.0-1.3+deb11u3, 7.74.0-1.3+deb11u4
  • every version up to 7.74.0-1.3+deb11u5: fixed in 7.74.0-1.3+deb11u5
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-1: fixed in 7.86.0-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-1: fixed in 7.86.0-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-1: fixed in 7.86.0-1
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 21× in last 7d / 87× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 311 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 211 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:35 UTCEchelonGraph re-scored
  2. 2026-11-12 16:35 UTCVendor advisory
  3. 2026-11-12 16:35 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-11-12 16:29 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  5. 2026-11-11 16:32 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  6. 2026-11-11 15:03 UTCEchelonGraph re-scored
  7. 2026-11-11 15:03 UTCVendor advisory
  8. 2026-11-11 15:03 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-11-10 16:35 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  10. 2026-11-10 13:33 UTCEchelonGraph re-scored
  11. 2026-11-10 13:33 UTCVendor advisory
  12. 2026-11-10 13:33 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-11-09 16:29 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  14. 2026-11-09 11:57 UTCEchelonGraph re-scored
  15. 2026-11-09 11:57 UTCVendor advisory
  16. 2026-11-09 11:57 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-11-08 16:34 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  18. 2026-11-08 10:27 UTCEchelonGraph re-scored
  19. 2026-11-08 10:27 UTCVendor advisory
  20. 2026-11-08 10:27 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-11-07 16:34 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  22. 2026-11-07 08:56 UTCEchelonGraph re-scored
  23. 2026-11-07 08:56 UTCVendor advisory
  24. 2026-11-07 08:56 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-11-06 16:30 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
Show 75 more
  1. 2026-11-06 07:26 UTCEchelonGraph re-scored
  2. 2026-11-06 07:26 UTCVendor advisory
  3. 2026-11-06 07:26 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-11-05 16:32 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  5. 2026-11-05 05:56 UTCEchelonGraph re-scored
  6. 2026-11-05 05:56 UTCVendor advisory
  7. 2026-11-05 05:56 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-11-04 16:30 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  9. 2026-11-04 04:25 UTCEchelonGraph re-scored
  10. 2026-11-04 04:25 UTCVendor advisory
  11. 2026-11-04 04:25 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-11-04 03:55 UTCOSV refresh
  13. 2026-11-03 16:39 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  14. 2026-11-03 02:48 UTCEchelonGraph re-scored
  15. 2026-11-03 02:48 UTCVendor advisory
  16. 2026-11-03 02:48 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-11-02 01:17 UTCEchelonGraph re-scored
  18. 2026-11-02 01:17 UTCVendor advisory
  19. 2026-11-02 01:17 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-31 23:46 UTCEchelonGraph re-scored
  21. 2026-10-31 23:46 UTCVendor advisory
  22. 2026-10-31 23:46 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-31 16:29 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  24. 2026-10-30 22:16 UTCEchelonGraph re-scored
  25. 2026-10-30 22:16 UTCVendor advisory
  26. 2026-10-30 22:16 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  27. 2026-10-30 16:30 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  28. 2026-10-29 20:37 UTCEchelonGraph re-scored
  29. 2026-10-29 20:37 UTCVendor advisory
  30. 2026-10-29 20:37 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  31. 2026-10-29 16:29 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  32. 2026-10-28 19:07 UTCEchelonGraph re-scored
  33. 2026-10-28 19:07 UTCVendor advisory
  34. 2026-10-28 19:07 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  35. 2026-10-28 16:28 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  36. 2026-10-27 17:10 UTCEchelonGraph re-scored
  37. 2026-10-27 17:10 UTCVendor advisory
  38. 2026-10-27 17:10 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  39. 2026-10-27 16:28 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  40. 2026-10-26 16:28 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  41. 2026-10-26 15:38 UTCEchelonGraph re-scored
  42. 2026-10-26 15:38 UTCVendor advisory
  43. 2026-10-26 15:37 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  44. 2026-10-25 16:29 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  45. 2026-10-25 13:59 UTCEchelonGraph re-scored
  46. 2026-10-25 13:59 UTCVendor advisory
  47. 2026-10-25 13:59 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-10-24 16:29 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  49. 2026-10-24 12:29 UTCEchelonGraph re-scored
  50. 2026-10-24 12:29 UTCVendor advisory
  51. 2026-10-24 12:28 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-10-23 16:28 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  53. 2026-10-23 10:57 UTCEchelonGraph re-scored
  54. 2026-10-23 10:57 UTCVendor advisory
  55. 2026-10-23 10:57 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  56. 2026-10-22 16:30 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  57. 2026-10-22 09:26 UTCEchelonGraph re-scored
  58. 2026-10-22 09:26 UTCVendor advisory
  59. 2026-10-22 09:26 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  60. 2026-10-21 16:28 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  61. 2026-10-21 07:55 UTCEchelonGraph re-scored
  62. 2026-10-21 07:55 UTCVendor advisory
  63. 2026-10-21 07:55 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  64. 2026-10-20 16:29 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  65. 2026-10-20 06:25 UTCEchelonGraph re-scored
  66. 2026-10-20 06:25 UTCVendor advisory
  67. 2026-10-20 06:25 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  68. 2026-10-19 16:28 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  69. 2026-10-19 04:53 UTCEchelonGraph re-scored
  70. 2026-10-19 04:53 UTCVendor advisory
  71. 2026-10-19 04:53 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8
  72. 2026-10-18 16:28 UTCEPSS rescoreEPSS 5.1% · 92nd percentile
  73. 2026-10-18 03:22 UTCEchelonGraph re-scored
  74. 2026-10-18 03:22 UTCVendor advisory
  75. 2026-10-18 03:22 UTCGHSA enrichmentGHSA-grfr-78m7-q35q · GitHub severity CRITICAL · GitHub CVSS 9.8

Frequently asked(5)

What is CVE-2022-32221?
CVE-2022-32221 is a critical-severity vulnerability; its CVE record was published on December 5, 2022. When doing HTTP(S) transfers, libcurl might erroneously use the read callback (CURLOPT_READFUNCTION) to ask for data to send, even when the CURLOPT_POSTFIELDS option has been set, if the same handle previously was used to issue a PUT request which used that callback. This flaw may surprise the…
When was the CVE record for CVE-2022-32221 published?
The CVE record for CVE-2022-32221 was published on December 5, 2022. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 14, 2026; the record at its source may have been updated since.
Is CVE-2022-32221 actively exploited?
CVE-2022-32221 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.1% probability of exploitation in the next 30 days (92nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-32221?
CVE-2022-32221 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-32221?
A fix for CVE-2022-32221 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-32221 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-32221

Explore →

Is Your Infrastructure Affected by CVE-2022-32221?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.