What is CVE-2016-4489?

CVE-2016-4489 is a medium-severity vulnerability in GNU Libiberty, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2017-02-24.

How severe is CVE-2016-4489?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2016-4489 known to be exploited?

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

Integer overflow in GNU Libiberty

CVE-2016-4489

Integer overflow in the gnu_special function in libiberty allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted binary, related to the "demangling of virtual tables."

Vulnerability class: Integer Overflow

Published 2017-02-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

GNU Libiberty

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

Public proof-of-concept exploits

References

www.openwall.com/lists/oss-security/2016/05/05/5 (mailing-list, Mailing List, Third Party Advisory)
www.securityfocus.com/bid/90017 (vdb-entry)
gcc.gnu.org/bugzilla/show_bug.cgi (Issue Tracking)

Frequently asked questions

What is CVE-2016-4489?: CVE-2016-4489 is a medium-severity vulnerability in GNU Libiberty, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2017-02-24.
How severe is CVE-2016-4489?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2016-4489 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.