CVE-2022-34503: qpdf_project qpdf Out-of-bounds Write
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2022-34503DEBIAN-CVE-2022-34503
Published 22-07-2022Last modified 03-08-2024
Vulnerability summary
CVE-2022-34503 is a medium (CVSS 6.5) Out-of-bounds Write vulnerability in qpdf_project qpdf. EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 55.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
0.78%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 22-07-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
QPDF v8.4.2 was discovered to contain a heap buffer overflow via the function QPDF::processXRefStream. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.78%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
+0.02 pp
From 0.76% on 20-09-2026
20-09-202620-10-2026
EPSS score0.78%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundQpdf
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- qpdf< 9.0.0-1
Qpdf_project1 product
- qpdf8.4.2
Ubuntu1 product
- qpdfAll versions (No fix recorded)
3 vendors · 3 products
