What is CVE-2017-12956?

CVE-2017-12956 is a medium-severity vulnerability in Exiv2, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2017-08-18.

How severe is CVE-2017-12956?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2017-12956 known to be exploited?

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

Out-of-bounds Read in Exiv2

CVE-2017-12956

There is an illegal address access in Exiv2::FileIo::path[abi:cxx11]() in basicio.cpp of libexiv2 in Exiv2 0.26 that will lead to remote denial of service.

Vulnerability class: Buffer Overflow

Published 2017-08-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.9th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Exiv2 — versions 0.26

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

Public proof-of-concept exploits

andir/nixos-issue-db-example

References

bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-12956?: CVE-2017-12956 is a medium-severity vulnerability in Exiv2, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2017-08-18.
How severe is CVE-2017-12956?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2017-12956 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.