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CVE-2021-42260

25
FAUCET Score

CVE-2021-42260 is a denial-of-service vulnerability affecting TinyXML through version 2.6.2, specifically impacting products like Debian Linux and TinyXML Project. A crafted XML message can trigger an infinite loop in the TiXmlParsingData::Stamp function, leading to system unavailability. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network without user interaction, though it only impacts availability. Currently, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.3.2, <= 2.6.2CPE matchmatch criteria
cpe:2.3:a:tinyxml_project:tinyxml:*:*:*:*:*:*:*:*
2.3.0CPE matchmatch criteria
cpe:2.3:a:tinyxml_project:tinyxml:2.3.0:beta:*:*:*:*:*:*
2.3.1CPE matchmatch criteria
cpe:2.3:a:tinyxml_project:tinyxml:2.3.1:beta:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.06%
Probability of exploitation in next 30 days
EPSS Percentile
86.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0306 is in the 75th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.fedoraproject.org / archives/list/[email protected]/message/4QCR5PIOBGDIDS6SYRESTMDJSEDFSCOE
lists.fedoraproject.org / archives/list/[email protected]/message/HOMBSHRIW5Q34SQSXYURYAOYDZD2NQF6
lists.debian.org / debian-lts-announce/2022/04/msg00019.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2022/09/msg00041.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/4QCR5PIOBGDIDS6SYRESTMDJSEDFSCOE
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/HOMBSHRIW5Q34SQSXYURYAOYDZD2NQF6
sourceforge.net / p/tinyxml/bugs/141
ExploitIssue TrackingThird Party Advisory