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.
CVE-2020-1752
Score 7.0 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 7.0; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.0
- EG Score
- 7.0(medium)
- EG Risk
- 36(Track)EG Risk 36/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity70% × 45%Exploitation1% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 43%
- KEV
- Not listed
Published
April 30, 2020
Last Modified
November 21, 2024
References (18)
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1752
- secalert@redhathttps://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- secalert@redhathttps://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- secalert@redhathttps://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
- secalert@redhathttps://security.gentoo.org/glsa/202101-20
- secalert@redhathttps://security.netapp.com/advisory/ntap-20200511-0005/
- secalert@redhathttps://sourceware.org/bugzilla/show_bug.cgi?id=25414
- secalert@redhathttps://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ddc650e9b3dc916eab417ce9f79e67337b05035c
- secalert@redhathttps://usn.ubuntu.com/4416-1/
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1752
- af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
- af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202101-20
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20200511-0005/
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | nscd (2.23-0ubuntu11.2) @ xenial | 2026-05-27 | ubuntu |
| redhat | glibc-0:2.28-127.el8 | 2020-11-04 | redhat |
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)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| glibc | 2.28-10, 2.28-10+deb10u1 | 2.28-10+deb10u2 | — |
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| glibc | — | 2.30-3 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| glibc | — | 2.30-3 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| glibc | — | 2.30-3 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| glibc | — | 2.30-3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(3)
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.
- Microsoft MSRCCVE-2020-17522020-08-18
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.
- Red HatRHSA-2020:4444MODERATE2020-01-17
RHSA-2020:4444 — Moderate
- UbuntuUSN-4416-1LOW
GNU C Library vulnerabilities
Data Freshness Timeline
(refreshed 8× in last 7d / 33× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 132 total refreshes for this CVE.
- 2026-08-20 22:52 UTCEPSS rescore
- 2026-08-20 22:45 UTCOSV refresh
- 2026-08-19 17:00 UTCEPSS rescore
- 2026-08-18 13:44 UTCEPSS rescore
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- 2026-08-05 19:14 UTCEPSS rescore
- 2026-08-05 14:10 UTCOSV refresh
- 2026-08-04 15:06 UTCEPSS rescore
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- 2026-07-26 14:51 UTCEPSS rescore
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- 2026-07-23 01:50 UTCEG score recompute
- 2026-07-22 22:36 UTCEG score recompute
- 2026-07-22 14:05 UTCEPSS rescore
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- 2026-07-01 22:31 UTCOSV refresh
- 2026-07-01 15:03 UTCEPSS rescore
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- 2026-06-14 03:13 UTCOSV refresh
- 2026-06-13 22:58 UTCEPSS rescore
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- 2026-06-10 13:20 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat
- CVE-2001-0825EG 10.0HIGH
- CVE-2001-0554EG 10.0EPSS p98HIGH
- CVE-2001-0414EG 10.0EPSS p100HIGH
- CVE-2001-0191EG 10.0EPSS p92HIGH
- CVE-2001-0301EG 10.0EPSS p91HIGH
- CVE-2001-0197EG 10.0EPSS p96HIGH
- CVE-2001-0233EG 10.0EPSS p96HIGH
- CVE-2001-0010EG 10.0EPSS p98HIGH
- CVE-2001-0011EG 10.0EPSS p94HIGH
- CVE-2001-0013EG 10.0EPSS p95HIGH
Frequently asked(5)
What is CVE-2020-1752?
When was CVE-2020-1752 disclosed?
Is CVE-2020-1752 actively exploited?
What is the CVSS score of CVE-2020-1752?
How do I remediate CVE-2020-1752?
Dependency Blast Radius
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