Technology · Gnu
Gnu Glibc vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 20 vulnerabilities in Gnu Glibc: 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 1 exploited in the wild. The most recent, CVE-2026-6238, was published on 28 April 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 2
- Exploited in the wild
- 1
About Gnu Glibc
Standard C library implementation for GNU/Linux systems providing core libc functions.
Latest Gnu Glibc vulnerabilities
- CVE-2026-6238: GNU glibc buffer over-read in DNS debugging functionsmediumCVSS 6.5EPSS 0.3%
- CVE-2026-5435: GNU glibc out-of-bounds write in ns_printrrf TSIG handlinghighCVSS 7.3EPSS 0.2%
- CVE-2026-5928: GNU C Library glibc buffer under-read in ungetwchighCVSS 7.5EPSS 0.4%
- CVE-2026-5450: GNU glibc heap buffer overflow in scanf %mc specifiercriticalCVSS 9.8EPSS 0.4%
- CVE-2026-4046: GNU glibc assertion failure in iconv character conversionhighCVSS 7.5EPSS 0.4%
- CVE-2026-4438: GNU glibc improper input validation in gethostbyaddrmediumCVSS 5.4EPSS 0.2%
- CVE-2026-4437: GNU glibc DNS specification violation in gethostbyaddrhighCVSS 7.5EPSS 0.3%
- CVE-2026-3904: GNU glibc race condition crash in nscd client via memcmpmediumCVSS 6.2EPSS 0.1%
- CVE-2025-0395: GNU glibc buffer overflow in assert function failure handlingmediumCVSS 6.2
- CVE-2024-33602: GNU glibc memory corruption in nscd netgroup cachehighCVSS 7.4
- CVE-2024-33601: GNU glibc denial of service in nscd netgroup cachehighCVSS 7.3
- CVE-2024-33600: GNU glibc null pointer dereference in nscd netgroup cachemediumCVSS 5.9
- CVE-2024-33599: GNU glibc nscd stack-based buffer overflow in netgroup cachehighCVSS 8.1
- CVE-2024-2961: GNU glibc buffer overflow in iconv functionhighCVSS 7.3
- CVE-2023-6780: GNU glibc integer overflow in __vsyslog_internalmediumCVSS 5.3
- CVE-2023-6779: GNU glibc heap buffer overflow in __vsyslog_internalhighCVSS 8.2
- CVE-2023-6246: GNU glibc heap buffer overflow in __vsyslog_internalhighCVSS 8.4
- CVE-2023-4911: GNU C Library Buffer Overflow Vulnerabilitycriticalexploited in the wildCVSS 7.8
- CVE-2023-4806: GNU glibc use-after-free in getaddrinfomediumCVSS 5.9
- CVE-2023-4527: GNU glibc stack read overflow in getaddrinfomediumCVSS 6.5
Most severe Gnu Glibc vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2023-4911: GNU C Library Buffer Overflow Vulnerabilitycriticalexploited in the wildCVSS 7.8
- CVE-2026-5450: GNU glibc heap buffer overflow in scanf %mc specifiercriticalCVSS 9.8EPSS 0.4%
- CVE-2023-6246: GNU glibc heap buffer overflow in __vsyslog_internalhighCVSS 8.4
- CVE-2023-6779: GNU glibc heap buffer overflow in __vsyslog_internalhighCVSS 8.2
- CVE-2024-33599: GNU glibc nscd stack-based buffer overflow in netgroup cachehighCVSS 8.1
- CVE-2026-4046: GNU glibc assertion failure in iconv character conversionhighCVSS 7.5EPSS 0.4%
- CVE-2026-5928: GNU C Library glibc buffer under-read in ungetwchighCVSS 7.5EPSS 0.4%
- CVE-2026-4437: GNU glibc DNS specification violation in gethostbyaddrhighCVSS 7.5EPSS 0.3%
- CVE-2024-33602: GNU glibc memory corruption in nscd netgroup cachehighCVSS 7.4
- CVE-2026-5435: GNU glibc out-of-bounds write in ns_printrrf TSIG handlinghighCVSS 7.3EPSS 0.2%
Vulnerabilities per week
Nothing was published in the last eight weeks. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Gnu Glibc vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/glibc)<a href="https://junglewise.ai/threats/technologies/glibc"><img src="https://junglewise.ai/threats/technologies/glibc/badge.svg" alt="Gnu Glibc vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/glibc.json, and this page as text at https://junglewise.ai/threats/technologies/glibc.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Gnu Glibc vulnerabilities", https://junglewise.ai/threats/technologies/glibc, 13 November 2026.