CVE-2026-90830: binutils Null Dereference (CVSS 5.3)

Description

A security vulnerability has been detected in GNU Binutils 2.47. Impacted is the function _bfd_write_merged_section of the file bfd/merge.c of the component Section Merge. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. 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

5.3

MEDIUM

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

EPSS — Exploit Prediction

0.0015

Probability of exploitation

0.05%

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://sourceware.org/bugzilla/attachment.cgi?id=16884 https://sourceware.org/bugzilla/show_bug.cgi?id=34452 https://vuldb.com/cve/CVE-2026-90830 https://vuldb.com/submit/925229 https://vuldb.com/vuln/403332 https://vuldb.com/vuln/403332/cti https://www.gnu.org/

Frequently Asked Questions

What is CVE-2026-90830? +

A security vulnerability has been detected in GNU Binutils 2.47. Impacted is the function _bfd_write_merged_section of the file bfd/merge.c of the component Section Merge. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. 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 5.3 (MEDIUM).

How severe is CVE-2026-90830? +

CVE-2026-90830 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0015, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-90830? +

CVE-2026-90830 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-2026-90830? +

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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