SUSE · Security update for clamav
Affects SUSESource GCVE Database
Mentioned vulnerabilities
Exploited in the wild · KEV due 2 Sep 2025 · fixed in SUSE package updates : patch SUSE now.
Data as of 4 Nov 2026, 02:29 UTC
- KEV deadline
- US federal agencies must patch by this date; a sensible deadline for everyone else. Other KEV due dates
- Patch
- Available – fixed in 1.5.4
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 8 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: evidence found.
Listed in CISA KEV 4 days after disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by ESET, spol. s r.o.
, 16 days before disclosure
CVE published
on cve.org
, t = 0
In Threat Radar
record ingested
, 21 minutes after disclosure
Added to CISA KEV (opens in a new tab)
exploitation confirmed · ransomware use known
, 4 days after disclosure
KEV remediation due
US federal deadline
, 25 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
Description
This update for clamav fixes the following issues: - CVE-2026-20337: Improper boundary checks for content in zip archive parser (bsc#1274597). - CVE-2026-20338: invalid free due to bad ownership handling when merging ZIP catalogue records (bsc#1274598). - CVE-2026-20339: integer overflow in the PESpin unpacker leads to undersized allocation and heap out-of-bounds write (bsc#1274599). - CVE-2026-20345: out-of-bounds read/write via indexing error when converting GPT partition names (bsc#1274600). - CVE-2026-20346: integer underflow when parsing malformed PDF hex strings causes a crash (bsc#1274601). - CVE-2026-20347: integer overflow and undefined behavior when scanning malformed Mach-O files causes a crash (bsc#1274602). - CVE-2026-20348: improper size handling in the XAR parser allows excessive allocation and scan-limit bypass (bsc#1274603). - CVE-2026-46671: onenote_parser: Path traversal in `Parser:parse_notebook` allows reading files outside the notebook directory (bsc#1271922). - CVE-2025-8088: rejects path separators in NTFS alternate data stream names to prevent extraction outside ClamAV's temporary scan directory on Windows. Changes for clamav: Update to 1.5.4: * Fixed thread-safety issues in the clamd STATS command that could disclose process memory or crash the daemon while scans and STATS requests run concurrently. Also fixed partial socket-write handling used for large STATS responses. * FreeBSD: Restored support for safe quarantine move and remove actions while preserving protection against source-path replacement races. * Fixed an OpenSSL library-context leak in legacy hashing helpers when a requested message digest cannot be fetched, such as when the default provider is unavailable in a FIPS-enabled environment. * Upgraded the Rust crossbeam-epoch dependency to resolve the RUSTSEC-2026-0204 advisory.
References
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/suse-su-2026_4179-1.json (opens in a new tab)
- suse.com/support/update/announcement/2026/suse-su-20264179-1/ (opens in a new tab)
- bugzilla.suse.com/1271922 (opens in a new tab)
- bugzilla.suse.com/1274597 (opens in a new tab)
- bugzilla.suse.com/1274598 (opens in a new tab)
- bugzilla.suse.com/1274599 (opens in a new tab)
- bugzilla.suse.com/1274600 (opens in a new tab)
- bugzilla.suse.com/1274601 (opens in a new tab)
- bugzilla.suse.com/1274602 (opens in a new tab)
- bugzilla.suse.com/1274603 (opens in a new tab)
- suse.com/security/cve/CVE-2025-8088/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-20337/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-20338/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-20339/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-20345/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-20346/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-20347/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-20348/ (opens in a new tab)