Technology · Gnu
GNU C Library vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 7 vulnerabilities in GNU C Library: 0 in the last 7 days and 6 in the last 90 days, 1 of them critical and 1 exploited in the wild. The most recent, CVE-2026-8674, was published on 17 September 2026.
- Last 7 days
- 0
- Last 90 days
- 6
- Critical, all time
- 1
- Exploited in the wild
- 1
About GNU C Library
The GNU C Library (glibc) provides the core libraries for the GNU system and many systems with the Linux kernel.
Latest GNU C Library vulnerabilities
- CVE-2026-8674: GNU C Library DNS resolver assertion failure in search list parsingmediumCVSS 5.3EPSS 0.3%
- CVE-2026-80489: GNU C Library EUC_JISX0213 converter denial of servicemediumCVSS 5.9EPSS 0.4%
- CVE-2026-19542: GNU C Library tdelete stack-based buffer overflowmediumCVSS 5.6EPSS 0.2%
- CVE-2026-19499: GNU C Library buffer overflow in strfmon right-justificationhighCVSS 7.7EPSS 0.3%
- CVE-2026-89092: GNU C Library nscd stack overflow in DNS cache handlingmediumCVSS 4.2EPSS 0.3%
- CVE-2026-18374: GNU C Library heap buffer overflow in fopen ccs= handlingmediumCVSS 4.9EPSS 0.1%
- CVE-2023-4911: GNU C Library Buffer Overflow Vulnerabilitycriticalexploited in the wildCVSS 7.8
Most severe GNU C Library 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-2026-19499: GNU C Library buffer overflow in strfmon right-justificationhighCVSS 7.7EPSS 0.3%
- CVE-2026-80489: GNU C Library EUC_JISX0213 converter denial of servicemediumCVSS 5.9EPSS 0.4%
- CVE-2026-19542: GNU C Library tdelete stack-based buffer overflowmediumCVSS 5.6EPSS 0.2%
- CVE-2026-8674: GNU C Library DNS resolver assertion failure in search list parsingmediumCVSS 5.3EPSS 0.3%
- CVE-2026-18374: GNU C Library heap buffer overflow in fopen ccs= handlingmediumCVSS 4.9EPSS 0.1%
- CVE-2026-89092: GNU C Library nscd stack overflow in DNS cache handlingmediumCVSS 4.2EPSS 0.3%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 1 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 1 | 0 | |
| 14 Sep 2026 | 4 | 0 | |
| 21 Sep 2026 | 0 | 0 |
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/gnu-c-library.json, 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 C Library vulnerabilities", https://junglewise.ai/threats/technologies/gnu-c-library, 26 September 2026.