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CVE-2023-24808

21
FAUCET Score

CVE-2023-24808 is a denial-of-service vulnerability affecting PDFio, a C library for reading and writing PDF files, in versions prior to 1.1.0. A specially crafted PDF file can cause the pdfio parser to consume 100% CPU and never terminate, impacting any application or server relying on this library. Rated Medium (CVSS 6.5), it requires user interaction (UI:R) to open the malicious file, but the attack complexity is low (AC:L) and results in high availability impact (A:H). There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.0CPE matchmatch criteria
cpe:2.3:a:pdfio_project:pdfio:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 56th percentile among its peer group of 26,221 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / michaelrsweet/pdfio/commit/4f10021e7ee527c1aa24853e2947e38e154d9ccb
PatchThird Party Advisory
github.com / michaelrsweet/pdfio/security/advisories/GHSA-cjc4-x96x-fvgf
ExploitThird Party Advisory