Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2022-34503

22
FAUCET Score

CVE-2022-34503 describes a heap buffer overflow vulnerability in QPDF v8.4.2, specifically within the QPDF::processXRefStream function, affecting the qpdf_project qpdf product. This medium-severity vulnerability (CVSS 6.5) can be triggered remotely without authentication through user interaction (e.g., opening a crafted PDF file), leading to a Denial of Service. While no active exploitation, public exploit code, or significant community discussion has been observed, organizations using QPDF v8.4.2 should consider patching to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
8.4.2CPE matchmatch criteria
cpe:2.3:a:qpdf_project:qpdf:8.4.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
50.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 57th percentile among its peer group of 26,219 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

Vendor Advisories (1)

redhatCVE-2022-34503Low

qpdf: a heap buffer overflow via the function QPDF::processXRefStream

Jul 22, 2022

References

github.com / qpdf/qpdf/issues/701
ExploitIssue TrackingThird Party Advisory