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Fencer Vulns
medium 6.5

CVE-2020-19716 json

A buffer overflow vulnerability in the Databuf function in types.cpp of Exiv2 v0.27.1 leads to a denial of service (DOS).

published 2021-07-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-0079

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

A buffer overflow vulnerability in the Databuf function in types.cpp of Exiv2 v0.27.1 leads to a denial of service (DOS).

Patch / fix

  • exiv2 Debian 14, Debian 13, Debian 12 0.27.2-6

debian advisories DEBIAN-CVE-2020-19716

  • exiv2 SLE Module for Desktop Applications 15 SP4, openSUSE Leap 15.4 0.27.5-150400.15.4.1
  • exiv2-0_26 SLE Module for Desktop Applications 15 SP4, openSUSE Leap 15.4 0.26-150400.9.16.1

suse advisories SUSE-SU-2022:3889-1

  • exiv2 openSUSE Tumbleweed 0.27.5-3.1

opensuse advisories openSUSE-SU-2024:12381-1

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-2020-19716 updated cvss 6.5

exiv2: buffer overflow in Databuf function in types.cpp leads to DoS

  • Red Hat Enterprise Linux 6 exiv2, exiv2-libs Red Hat Enterprise Linux 7 exiv2, exiv2-libs
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 exiv2, exiv2-libs Red Hat Enterprise Linux 9 exiv2, exiv2-libs
    not affected: vulnerable code not present

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

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns 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.