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Fencer Intel
high 8.8

CVE-2017-12955 json

There is a heap-based buffer overflow in basicio.cpp of Exiv2 0.26.

published 2017-08-18 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-0041

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

There is a heap-based buffer overflow in basicio.cpp of Exiv2 0.26. The vulnerability causes an out-of-bounds write in Exiv2::Image::printIFDStructure(), which may lead to remote denial of service or possibly unspecified other impact.

Patch / fix

  • exiv2 SLE Module for Desktop Applications 15 0.26-6.3.1

suse advisories SUSE-SU-2018:1882-1

  • exiv2 openSUSE Tumbleweed 0.27.4-1.2

opensuse advisories openSUSE-SU-2024:10747-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-12955 updated cvss 3.3

exiv2: Heap-based buffer overflow in basicio.cpp

  • Red Hat Enterprise Linux 6 exiv2, exiv2-libs Red Hat Enterprise Linux 7 exiv2, exiv2-libs
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.68% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-787 Out-of-bounds Write

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.