VulnerabilityAnalyzed

CVE-2026-34501

Heap-based Buffer Overflow vulnerability in Apache Portable Runtime Utility redis client.

HIGH 7.5EPSS 0.51%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Heap-based Buffer Overflow vulnerability in Apache Portable Runtime Utility redis client. This issue affects Apache Portable Runtime Utility: from 1.6.0 through 1.6.3. Users are recommended to upgrade to version 1.6.4, which fixes the issue.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.51% probability · 42th percentile
CISA KEV: Not listed
Weakness: CWE-122
Affected: apache/apr-util
Source: security@apache.org

References

https://lists.apache.org/thread/o8h6c7cq86fplxlnry6c3rn9x0ovq8mvMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/08/06/11Mailing List, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.