How many CVEs have patched was?

2 published CVEs changed was in debian/glibc, in 1 distinct patches totalling 30 changed lines, between 2025 and 2026.

What is the latest CVE that changed was?

CVE-2025-15281 (wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory), published 2026-01-20, changed lines 865 to 879 of elf/dl-tls.c.

How does was compare to the rest of debian/glibc?

debian/glibc has 23 CVEs with a located fix in total; 2 of them changed was.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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debian/glibc

Function

was

Name: was in debian/glibc: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

elf/dl-tls.c

Last patched January 20, 2026

2

CVEs

That changed this function

1

Distinct patches

Backports counted once

30

Lines changed

Added plus removed

2025–2026

Years

By CVE publication date

Overview

was in debian/glibc was changed by 2 published CVE fixes between 2025 and 2026, in 1 distinct patches that added or removed 30 lines in total.

debian/glibc has 23 CVEs with a located fix in total, so 9% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed was, newest first, with the lines each fix touched.

wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory
CVE-2025-15281 · lines 865–879 · +13 −2
High · CVSS 7.5
EPSS 0.5%2026-01-20
CVE-2025-0395
CVE-2025-0395 · lines 865–879 · +13 −2
Medium · CVSS 6.2
EPSS 0.4%2025-01-22

Get an alert when the next CVE fix lands in debian/glibc, with the patched functions.

Monitor glibc CVEs

Other hotspots in the repository

Functions in debian/glibc changed by the most CVE fixes.

tmp19 CVEs · sysdeps/aarch64/memcpy.S __mips16_syscall15 CVEs · sysdeps/unix/sysv/linux/mips/mips32/mips16/mips16-syscall.h dstend5 CVEs · sysdeps/aarch64/memcpy.S __gconv_open5 CVEs · iconv/gconv_int.h len5 CVEs · sysdeps/aarch64/strnlen.S __volatile__5 CVEs · sysdeps/unix/sysv/linux/microblaze/sysdep.h

All patched functions in debian/glibc

Frequently asked questions

Common questions about CVE fixes to was.

How many CVEs have patched was?: 2 published CVEs changed was in debian/glibc, in 1 distinct patches totalling 30 changed lines, between 2025 and 2026.
What is the latest CVE that changed was?: CVE-2025-15281 (wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory), published 2026-01-20, changed lines 865 to 879 of elf/dl-tls.c.
How does was compare to the rest of debian/glibc?: debian/glibc has 23 CVEs with a located fix in total; 2 of them changed was.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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