CVE-2026-34502: apache software foundation apache portable runtime utility Heap-based Buffer Overflow
CVSS: 7.5v3.1HighAnalyzed
AliasesALPINE-CVE-2026-34502UBUNTU-CVE-2026-34502DEBIAN-CVE-2026-34502
Published 06-08-2026Last modified 06-08-2026
Vulnerability summary
CVE-2026-34502 is a high (CVSS 7.5) Heap-based Buffer Overflow vulnerability in apache software foundation apache portable runtime utility. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 42.4% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.51%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 11 · Related 6Timeline
- 06-08-2026PublishedVulnerability first disclosed.
- 06-08-2026Last modifiedVulnerability information updated.
Description
Heap-based Buffer Overflow vulnerability in Apache Portable Runtime Utility memcached client This issue affects Apache Portable Runtime Utility: from 1.3.0 through 1.6.3.
CVSS metrics
5 scores · 5 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 5 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.51%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
0.00 pp
From 0.51% on 21-09-2026
21-09-202621-10-2026
EPSS score0.51%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- apr-util≥ 1.3.0, < 1.6.4-r0
Apache1 product
- apr-util≥ 1.3.0, ≤ 1.6.3
Apache software foundation1 product
- apache portable runtime utility≥ 1.3.0, ≤ 1.6.3
Debian1 product
- apr-util< 1.6.3-1+deb12u1 | < 1.6.3-3+deb13u1 | < 1.6.4-1
Ubuntu1 product
- apr-util< 1.5.3-1ubuntu0.1~esm3 | < 1.6.1-2ubuntu0.1+esm1 | < 1.6.1-4ubuntu2.2+esm1 | < 1.6.1-5ubuntu4.22.04.3 | < 1.6.3-1.1ubuntu7.1 | < 1.6.3-3ubuntu3.1
5 vendors · 5 products
