What is CVE-2023-1579?

CVE-2023-1579 is a high-severity vulnerability in GNU Binutils, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2023-04-03.

How severe is CVE-2023-1579?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2023-1579 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in GNU Binutils

CVE-2023-1579

Heap based buffer overflow in binutils-gdb/bfd/libbfd.c in bfd_getl64.

Vulnerability class: Buffer Overflow

Published 2023-04-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (40.8th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

GNU Binutils — versions 2.39
Binutils

Weakness classification (CWE)

Public proof-of-concept exploits

References

sourceware.org/bugzilla/show_bug.cgi (Exploit, Patch, Third Party Advisory, Issue Tracking)
security.netapp.com/advisory/ntap-20230511-0009/ (Third Party Advisory)
sourceware.org/git/gitweb.cgi
security.gentoo.org/glsa/202309-15 (vendor-advisory)

Frequently asked questions

What is CVE-2023-1579?: CVE-2023-1579 is a high-severity vulnerability in GNU Binutils, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2023-04-03.
How severe is CVE-2023-1579?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2023-1579 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.