Vulnerability Description
Buffer overflow vulnerability has been found in "extension/readdir.c" program file of gawk (ftype() routine). This issue could be used to crash the program and potentially to achieve code execution, although the latter has not been confirmed to be feasible. It affects gawk in versions 5.4.0 and below.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fossies | Gawk | <= 5.4.0 |
Related Weaknesses (CWE)
References
- https://cert.pl/en/posts/2026/07/CVE-2026-40467Third Party Advisory
- https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=cca0366144336b49aaa7dPatch
FAQ
What is CVE-2026-40553?
CVE-2026-40553 is a vulnerability with a CVSS score of 7.5 (HIGH). Buffer overflow vulnerability has been found in "extension/readdir.c" program file of gawk (ftype() routine). This issue could be used to crash the program and potentially to achieve code execution, a...
How severe is CVE-2026-40553?
CVE-2026-40553 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40553?
Check the references section above for vendor advisories and patch information. Affected products include: Fossies Gawk.