CVE-2026-91779: binutils Null Dereference (CVSS 3.3)

Description

A security flaw has been discovered in GNU Binutils 2.47. This affects the function _bfd_elf_eh_frame_section_offset of the file bfd/elf-eh-frame.c of the component Eh Frame Handler. Performing a manipulation results in null pointer dereference. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through a bug report but has not responded yet.

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CVSS v3.1 Score

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS — Exploit Prediction

0.0011

Probability of exploitation

0.02%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-404 CWE-404

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
gnu	binutils	All

References

Other References

https://github.com/Ech06/CVE_submit/blob/main/bugzilla/issues/34446.md https://sourceware.org/bugzilla/show_bug.cgi?id=34446 https://vuldb.com/cve/CVE-2026-91779 https://vuldb.com/submit/933333 https://vuldb.com/vuln/404050 https://vuldb.com/vuln/404050/cti https://www.gnu.org/

Frequently Asked Questions

What is CVE-2026-91779? +

A security flaw has been discovered in GNU Binutils 2.47. This affects the function _bfd_elf_eh_frame_section_offset of the file bfd/elf-eh-frame.c of the component Eh Frame Handler. Performing a manipulation results in null pointer dereference. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through a bug report but has not responded yet. It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2026-91779? +

CVE-2026-91779 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0011, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-91779? +

CVE-2026-91779 affects products from gnu, specifically: binutils. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-91779? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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