CVE-2017-7376

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 2022-05-14. 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-2017-16403 (ENISA EUVD) · GHSA-j45j-3c7p-vf8f (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).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 23%CVSS: 9.8Exploit: Public PoCExposed services: Not assessed

A fix is available — apply it.

Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
60
EG Risk 60/100

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.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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
23%
EPSS %ILE
97th
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
23% 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: 14 days if the affected system is publicly exposed; Fix on system upgrade 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 (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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

February 19, 2018

Last Modified

October 14, 2026

Advisory Details (7)

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

51e0cb2e5ec18eaf6fb331bc573ff27b743898f4 - platform/external/libxml2 - Git at Google

https://android.googlesource.com/platform/external/libxml2/+/51e0cb2e5ec18eaf6fb331bc573ff27b743898f4
Web page

PSIRT.COM — Product Security Incident Response Team

http://www.securityfocus.com/bid/98877
Web page

[SECURITY] [DSA 3952-1] libxml2 security update

https://www.debian.org/security/2017/dsa-3952
Web page

Android Security Bulletin—June 2017  |  Android Open Source Project

https://source.android.com/security/bulletin/2017-06-01
Red Hat

1462216 – (CVE-2017-7376) CVE-2017-7376 libxml2: Incorrect limit used for port values

https://bugzilla.redhat.com/show_bug.cgi?id=1462216
Web pageMentions a patch (unverified)

SSA-398330

https://cert-portal.siemens.com/productcert/html/ssa-398330.html

Vendor Advisories for CVE-2017-7376(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibxml2 (2.9.4+dfsg1-2.2ubuntu0.1) @ zesty2026-11-11ubuntu
ubuntulibxml2 (2.7.8.dfsg-5.1ubuntu4.18) @ precise2026-11-11ubuntu

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

(7 across 7 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
libxml2—
  • every version up to 2.9.4+dfsg1-3.1: fixed in 2.9.4+dfsg1-3.1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libxml2—
  • every version up to 2.9.4+dfsg1-3.1: fixed in 2.9.4+dfsg1-3.1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libxml2—
  • every version up to 2.9.4+dfsg1-3.1: fixed in 2.9.4+dfsg1-3.1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libxml2—
  • every version up to 2.9.4+dfsg1-3.1: fixed in 2.9.4+dfsg1-3.1
—
Debian:7(1)
PackageVulnerable rangeFix by version rangeDependents
libxml22.8.0+dfsg1-7+nmu1 ... 2.8.0+dfsg1-7+wheezy8 (11 versions)
  • every version up to 2.8.0+dfsg1-7+wheezy9: fixed in 2.8.0+dfsg1-7+wheezy9
—
Debian:8(1)
PackageVulnerable rangeFix by version rangeDependents
libxml22.9.1+dfsg1-5, 2.9.1+dfsg1-5+deb8u1, 2.9.1+dfsg1-5+deb8u2, 2.9.1+dfsg1-5+deb8u3, 2.9.1+dfsg1-5+deb8u4
  • every version up to 2.9.1+dfsg1-5+deb8u5: fixed in 2.9.1+dfsg1-5+deb8u5
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
libxml22.9.4+dfsg1-2.2
  • every version up to 2.9.4+dfsg1-2.2+deb9u1: fixed in 2.9.4+dfsg1-2.2+deb9u1
—

Weakness Classification(1)

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

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 15× in last 7d / 68× 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 255 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 155 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 20:32 UTCEchelonGraph re-scored
  2. 2026-11-12 20:32 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-11-12 16:28 UTCEPSS rescoreEPSS 23% · 97th percentile
  4. 2026-11-11 20:17 UTCEchelonGraph re-scored
  5. 2026-11-11 20:17 UTCVendor advisory
  6. 2026-11-11 20:17 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-11-11 16:29 UTCEPSS rescoreEPSS 23% · 97th percentile
  8. 2026-11-10 20:02 UTCEchelonGraph re-scored
  9. 2026-11-10 20:02 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-11-10 16:31 UTCEPSS rescoreEPSS 23% · 97th percentile
  11. 2026-11-09 19:44 UTCEchelonGraph re-scored
  12. 2026-11-09 19:44 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-11-09 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  14. 2026-11-08 19:30 UTCEchelonGraph re-scored
  15. 2026-11-08 19:30 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-11-08 16:30 UTCEPSS rescoreEPSS 23% · 97th percentile
  17. 2026-11-07 19:15 UTCEchelonGraph re-scored
  18. 2026-11-07 19:15 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-11-07 16:31 UTCEPSS rescoreEPSS 23% · 97th percentile
  20. 2026-11-06 18:55 UTCEchelonGraph re-scored
  21. 2026-11-06 18:55 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-11-06 16:28 UTCEPSS rescoreEPSS 23% · 97th percentile
  23. 2026-11-05 18:41 UTCEchelonGraph re-scored
  24. 2026-11-05 18:41 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-11-04 18:27 UTCEchelonGraph re-scored
Show 75 more
  1. 2026-11-04 18:27 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  2. 2026-11-04 16:28 UTCEPSS rescoreEPSS 23% · 97th percentile
  3. 2026-11-03 18:12 UTCEchelonGraph re-scored
  4. 2026-11-03 18:12 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-11-03 16:34 UTCEPSS rescoreEPSS 23% · 97th percentile
  6. 2026-11-02 17:57 UTCEchelonGraph re-scored
  7. 2026-11-02 17:57 UTCVendor advisory
  8. 2026-11-02 17:57 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-11-02 17:55 UTCOSV refresh
  10. 2026-11-01 17:42 UTCEchelonGraph re-scored
  11. 2026-11-01 17:42 UTCVendor advisory
  12. 2026-11-01 17:42 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-10-31 17:24 UTCEchelonGraph re-scored
  14. 2026-10-31 17:24 UTCVendor advisory
  15. 2026-10-31 17:24 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-10-31 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  17. 2026-10-30 17:09 UTCEchelonGraph re-scored
  18. 2026-10-30 17:09 UTCVendor advisory
  19. 2026-10-30 17:08 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-30 16:28 UTCEPSS rescoreEPSS 23% · 97th percentile
  21. 2026-10-29 16:54 UTCEchelonGraph re-scored
  22. 2026-10-29 16:54 UTCVendor advisory
  23. 2026-10-29 16:54 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-10-29 16:28 UTCEPSS rescoreEPSS 23% · 97th percentile
  25. 2026-10-28 16:38 UTCEchelonGraph re-scored
  26. 2026-10-28 16:38 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  27. 2026-10-28 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  28. 2026-10-27 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  29. 2026-10-27 16:20 UTCEchelonGraph re-scored
  30. 2026-10-27 16:20 UTCVendor advisory
  31. 2026-10-27 16:20 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  32. 2026-10-26 15:59 UTCEchelonGraph re-scored
  33. 2026-10-26 15:59 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-10-25 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  35. 2026-10-25 15:42 UTCEchelonGraph re-scored
  36. 2026-10-25 15:41 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  37. 2026-10-24 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  38. 2026-10-24 15:22 UTCEchelonGraph re-scored
  39. 2026-10-24 15:22 UTCVendor advisory
  40. 2026-10-24 15:22 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-10-23 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  42. 2026-10-23 15:07 UTCEchelonGraph re-scored
  43. 2026-10-23 15:07 UTCVendor advisory
  44. 2026-10-23 15:07 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  45. 2026-10-22 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  46. 2026-10-22 14:52 UTCEchelonGraph re-scored
  47. 2026-10-22 14:52 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-10-21 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  49. 2026-10-21 14:36 UTCEchelonGraph re-scored
  50. 2026-10-21 14:36 UTCVendor advisory
  51. 2026-10-21 14:36 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-10-20 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  53. 2026-10-20 14:18 UTCEchelonGraph re-scored
  54. 2026-10-20 14:18 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  55. 2026-10-19 16:26 UTCEPSS rescoreEPSS 23% · 97th percentile
  56. 2026-10-19 13:22 UTCEchelonGraph re-scored
  57. 2026-10-19 13:22 UTCVendor advisory
  58. 2026-10-19 13:22 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  59. 2026-10-18 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  60. 2026-10-18 12:45 UTCVendor advisory
  61. 2026-10-18 12:45 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  62. 2026-10-18 10:28 UTCEchelonGraph re-scored
  63. 2026-10-17 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  64. 2026-10-17 12:28 UTCEchelonGraph re-scored
  65. 2026-10-17 12:27 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  66. 2026-10-16 16:29 UTCEPSS rescoreEPSS 23% · 97th percentile
  67. 2026-10-16 12:11 UTCEchelonGraph re-scored
  68. 2026-10-16 12:11 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  69. 2026-10-15 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  70. 2026-10-15 11:55 UTCEchelonGraph re-scored
  71. 2026-10-15 11:54 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  72. 2026-10-14 16:27 UTCEPSS rescoreEPSS 23% · 97th percentile
  73. 2026-10-14 07:25 UTCVendor advisory
  74. 2026-10-14 07:25 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8
  75. 2026-10-14 06:36 UTCGHSA enrichmentGHSA-j45j-3c7p-vf8f · GitHub severity CRITICAL · GitHub CVSS 9.8

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.

  • GitHub PoCbrahmstaedt/libxml2-exploit
    Published Jun 11, 2020

    An example exploit for CVE-2017-7376

    Open source ↗

Frequently asked(5)

What is CVE-2017-7376?
CVE-2017-7376 is a critical-severity vulnerability; its CVE record was published on February 19, 2018. Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects.
When was CVE-2017-7376 made public?
CVE-2017-7376 was made public on June 5, 2017: that is the date its CVE record's CNA, MITRE Corporation, gives for when the vulnerability was made public. The CVE record itself was published on February 19, 2018. 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-2017-7376 actively exploited?
CVE-2017-7376 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23% probability of exploitation in the next 30 days (97th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2017-7376?
CVE-2017-7376 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-7376?
A fix for CVE-2017-7376 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2017-7376 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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