What is CVE-2020-19716?

CVE-2020-19716 is a medium-severity vulnerability in Exiv2, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2021-07-13.

How severe is CVE-2020-19716?

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

Is CVE-2020-19716 known to be exploited?

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

Buffer overflow in Exiv2

CVE-2020-19716

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

Vulnerability class: Buffer Overflow

Published 2021-07-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.011 (65.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Exiv2 — versions 0.27.1
Debian Linux — versions 10.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

github.com/Exiv2/exiv2/issues/980 (Third Party Advisory)
lists.debian.org/debian-lts-announce/2022/11/msg00013.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2020-19716?: CVE-2020-19716 is a medium-severity vulnerability in Exiv2, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2021-07-13.
How severe is CVE-2020-19716?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-19716 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.