HOMEVULNERABILITIESCVE-2020-35523
HIGH

CVE-2020-35523

CWE-190Published: March 9, 2021· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

An integer overflow flaw was found in libtiff that exists in the tif_getimage.c file. This flaw allows an attacker to inject and execute arbitrary code when a user opens a crafted TIFF file. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

NVD Source

Technical Analysis

CVE-2020-35523 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
libtiff1 product(s)
libtiff
netapp1 product(s)
ontap select deploy administration utility
Red Hat1 product(s)
enterprise linux
Source: NVD CPE · 7 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1932040
PATCHhttps://gitlab.com/libtiff/libtiff/-/commit/c8d613ef497058fe653c467fc84c70a62a4a71b2
PATCHhttps://gitlab.com/libtiff/libtiff/-/merge_requests/160
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=1932040
PATCHhttps://gitlab.com/libtiff/libtiff/-/commit/c8d613ef497058fe653c467fc84c70a62a4a71b2
PATCHhttps://gitlab.com/libtiff/libtiff/-/merge_requests/160
ADVISORYhttps://lists.debian.org/debian-lts-announce/2021/06/msg00023.html
ADVISORYhttps://security.gentoo.org/glsa/202104-06
ADVISORYhttps://security.netapp.com/advisory/ntap-20210521-0009/
ADVISORYhttps://www.debian.org/security/2021/dsa-4869
ADVISORYhttps://lists.debian.org/debian-lts-announce/2021/06/msg00023.html
ADVISORYhttps://security.gentoo.org/glsa/202104-06
ADVISORYhttps://security.netapp.com/advisory/ntap-20210521-0009/
ADVISORYhttps://www.debian.org/security/2021/dsa-4869

All References (16)

→
https://bugzilla.redhat.com/show_bug.cgi?id=1932040Issue Tracking · Patch · Third Party Advisory
→
https://gitlab.com/libtiff/libtiff/-/commit/c8d613ef497058fe653c467fc84c70a62a4a71b2Patch · Third Party Advisory
→
https://gitlab.com/libtiff/libtiff/-/merge_requests/160Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2021/06/msg00023.htmlMailing List · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG/
→
https://security.gentoo.org/glsa/202104-06Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20210521-0009/Third Party Advisory
→
https://www.debian.org/security/2021/dsa-4869Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1932040Issue Tracking · Patch · Third Party Advisory
→
https://gitlab.com/libtiff/libtiff/-/commit/c8d613ef497058fe653c467fc84c70a62a4a71b2Patch · Third Party Advisory
→
https://gitlab.com/libtiff/libtiff/-/merge_requests/160Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2021/06/msg00023.htmlMailing List · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMHBYFMX3D5VGR6Y3RXTTH3Q4NF4E6IG/
→
https://security.gentoo.org/glsa/202104-06Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20210521-0009/Third Party Advisory

Quick Facts

CVE IDCVE-2020-35523
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-190
CISA KEVNo
Affected4 vendor(s)
PublishedMar 9, 2021

Related CVEs (CWE-190)

CVE-2013-2555
10.0
CVE-2015-5108
10.0
CVE-2008-2663
10.0
CVE-2010-1233
10.0
CVE-2015-5097
10.0
CVE-2025-64721
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-35523 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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