CVE-2020-1752

HIGHNVD 7.07.0
EchelonGraph scoreMEDIUM confidence

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

Score 7.0 from GitHub Security Advisory (severity: MODERATE) published 2022-05-24. NVD baseline CVSS 7.0; sources differ by 0.0.

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

Also known asEUVD-2020-12583 (ENISA EUVD) · GHSA-8x3m-4qgh-829r (GitHub Security Advisories)Source: ENISA EUVD

7.0EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.

CVSS v3
7.0
EG Score
7.0HIGHmedium confidence
EG Risk
32
EG Risk 32/100

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)
Severity70% × 45%
Impact severity (EG Severity): CVSS 7.0 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
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 or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or 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.
EPSS PROB
0.5%
EPSS %ILE
46th
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 (7.0): severity, escalated by confirmed exploitation. This CVE's 7.0 is its impact severity (EG Severity), not escalated.

EG Severity
7.0 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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 or medium mission impact; Track* at high (mission-essential systems).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 or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (no CISA value, KEV listing or 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

April 30, 2020

Last Modified

October 14, 2026

Advisory Details (8)

Auto-updated Oct 14, 2026
Patch available. Sources: redhat.
Web pageMentions a patch (unverified)

SSA-831302

https://cert-portal.siemens.com/productcert/html/ssa-831302.html
Web pageMentions a patch (unverified)

[SECURITY] [DLA 3152-1] glibc security update

https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
Web page

glibc: Multiple vulnerabilities (GLSA 202101-20) — Gentoo security

https://security.gentoo.org/glsa/202101-20
Web page

25414 – (CVE-2020-1752) 'glob' use-after-free bug (CVE-2020-1752)

https://sourceware.org/bugzilla/show_bug.cgi?id=25414
Red HatMentions a patch (unverified)

1810718 – (CVE-2020-1752) CVE-2020-1752 glibc: use-after-free in glob() function when expanding ~user

Affected: Red Hat Enterprise Linux 5 and 6, as the vulnerable code was introduced in a later version of the package. Red Hat Enterprise

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1752

Vendor Advisories for CVE-2020-1752(2)

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
ubuntunscd (2.30-0ubuntu2.2) @ eoan2026-10-28ubuntu
redhatglibc-0:2.28-127.el82020-11-04redhat

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

(5 across 5 ecosystems)
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
glibc2.28-10, 2.28-10+deb10u1
  • every version up to 2.28-10+deb10u2: fixed in 2.28-10+deb10u2
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
glibc—
  • every version up to 2.30-3: fixed in 2.30-3
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
glibc—
  • every version up to 2.30-3: fixed in 2.30-3
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
glibc—
  • every version up to 2.30-3: fixed in 2.30-3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
glibc—
  • every version up to 2.30-3: fixed in 2.30-3
—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

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 10× in last 7d / 39× 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 233 rows on record for this CVE, as 97 entries (3 repeats merged).

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. 3 repeat rows among the latest 100 are merged into the row they repeat. The 133 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:29 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  2. 2026-11-12 02:56 UTCOSV refresh
  3. 2026-11-11 16:30 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  4. 2026-11-11 10:34 UTCEchelonGraph re-scored
  5. 2026-11-11 10:34 UTCVendor advisory
  6. 2026-11-11 10:34 UTCGHSA enrichmentGHSA-8x3m-4qgh-829r · GitHub severity MODERATE · GitHub CVSS 7.0
  7. 2026-11-10 16:34 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  8. 2026-11-09 16:28 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  9. 2026-11-08 16:31 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  10. 2026-11-07 16:33 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  11. 2026-11-06 16:29 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  12. 2026-11-05 16:29 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  13. 2026-11-04 16:29 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  14. 2026-11-04 13:45 UTCEchelonGraph re-scored
  15. 2026-11-04 13:45 UTCVendor advisory
  16. 2026-11-04 13:45 UTCGHSA enrichmentGHSA-8x3m-4qgh-829r · GitHub severity MODERATE · GitHub CVSS 7.0
  17. 2026-11-03 16:36 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  18. 2026-11-02 16:36 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  19. 2026-11-01 16:29 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  20. 2026-10-31 16:28 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  21. 2026-10-30 16:29 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  22. 2026-10-29 16:28 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  23. 2026-10-28 17:10 UTCEchelonGraph re-scored
  24. 2026-10-28 17:10 UTCVendor advisory
  25. 2026-10-28 17:09 UTCGHSA enrichmentGHSA-8x3m-4qgh-829r · GitHub CVSS 7.0
Show 72 more
  1. 2026-10-28 16:27 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  2. 2026-10-27 16:27 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  3. 2026-10-26 16:27 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  4. 2026-10-25 18:48 UTCEchelonGraph re-scored
  5. 2026-10-25 16:28 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  6. 2026-10-24 16:28 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  7. 2026-10-23 16:27 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  8. 2026-10-22 16:29 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  9. 2026-10-21 16:28 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  10. 2026-10-21 12:50 UTCEchelonGraph re-scored
  11. 2026-10-21 12:50 UTCVendor advisory
  12. 2026-10-21 12:50 UTCGHSA enrichmentGHSA-8x3m-4qgh-829r · GitHub CVSS 7.0
  13. 2026-10-20 16:28 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  14. 2026-10-19 16:27 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  15. 2026-10-18 16:28 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  16. 2026-10-18 09:31 UTCEchelonGraph re-scored
  17. 2026-10-17 16:28 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  18. 2026-10-16 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  19. 2026-10-15 16:27 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  20. 2026-10-14 16:28 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  21. 2026-10-14 09:25 UTCVendor advisory
  22. 2026-10-14 09:25 UTCGHSA enrichmentGHSA-8x3m-4qgh-829r · GitHub CVSS 7.0
  23. 2026-10-14 08:31 UTCEchelonGraph re-scored
  24. 2026-10-14 08:31 UTCVendor advisory
  25. 2026-10-14 08:31 UTCGHSA enrichmentGHSA-8x3m-4qgh-829r · GitHub CVSS 7.0
  26. 2026-10-13 16:28 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  27. 2026-10-12 19:43 UTCEchelonGraph re-scored
  28. 2026-10-12 16:29 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  29. 2026-10-12 00:06 UTCEchelonGraph re-scored
  30. 2026-10-11 13:43 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  31. 2026-10-10 19:56 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  32. 2026-10-09 20:04 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  33. 2026-10-08 16:38 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  34. 2026-10-07 23:44 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  35. 2026-10-06 15:13 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  36. 2026-10-05 17:39 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  37. 2026-10-04 23:18 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  38. 2026-10-03 14:22 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  39. 2026-10-02 16:22 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  40. 2026-09-30 15:13 UTCEchelonGraph re-scored
  41. 2026-09-30 14:59 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  42. 2026-09-27 13:40 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  43. 2026-09-27 04:15 UTCOSV refresh
  44. 2026-09-26 15:54 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  45. 2026-09-26 00:20 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  46. 2026-09-24 14:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  47. 2026-09-22 14:43 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  48. 2026-09-21 20:28 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  49. 2026-09-20 20:11 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  50. 2026-09-18 19:23 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  51. 2026-09-17 19:22 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  52. 2026-09-16 14:04 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  53. 2026-09-15 03:06 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  54. 2026-09-13 16:42 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  55. 2026-09-12 14:56 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  56. 2026-09-11 14:48 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  57. 2026-09-11 09:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  58. 2026-09-10 09:29 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  59. 2026-09-08 21:56 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  60. 2026-09-07 15:57 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  61. 2026-09-07 13:47 UTCOSV refresh
  62. 2026-09-06 13:44 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  63. 2026-09-05 15:24 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  64. 2026-09-04 13:57 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  65. 2026-09-04 05:03 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  66. 2026-09-02 14:08 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  67. 2026-09-01 03:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  68. 2026-08-30 19:14 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  69. 2026-08-30 01:18 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  70. 2026-08-27 14:21 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  71. 2026-08-26 14:42 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  72. 2026-08-25 13:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile

Frequently asked(5)

What is CVE-2020-1752?
CVE-2020-1752 is a high-severity vulnerability; its CVE record was published on April 30, 2020. A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially…
When was the CVE record for CVE-2020-1752 published?
The CVE record for CVE-2020-1752 was published on April 30, 2020. 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-2020-1752 actively exploited?
CVE-2020-1752 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-1752?
CVE-2020-1752 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2020-1752?
A fix for CVE-2020-1752 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2020-1752 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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