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Vulnerability of the tvbuff_lz77.c function: do_uncompress() – This decompression mechanism of the LZ77 algorithm is used by Wireshark to analyze computer network traffic. It can be exploited by attackers to cause service interruptions.
🗓️ 18 May 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 1 Views
| Reporter | Title | Published | Views | Family All 72 |
|---|---|---|---|---|
 | CVE-2026-6533 | 30 Apr 202605:36 | – | attackerkb |
 | CVE-2026-6533 | 30 Apr 202605:36 | – | alpinelinux |
 | Wireshark 安全漏洞 | 30 Apr 202600:00 | – | cnnvd |
 | CVE-2026-6533 | 30 Apr 202605:36 | – | cve |
 | CVE-2026-6533 Improperly Controlled Sequential Memory Allocation in Wireshark | 30 Apr 202605:36 | – | cvelist |
 | [SECURITY] [DSA 6249-1] wireshark security update | 6 May 202621:16 | – | debian |
 | CVE-2026-6533 | 30 Apr 202605:36 | – | debiancve |
 | Debian dsa-6249 : libwireshark-data - security update | 7 May 202600:00 | – | nessus |
| Wireshark 4.4.x < 4.4.15 Multiple Vulnerabilities (macOS) | 1 May 202600:00 | – | nessus |
| Wireshark 4.6.x < 4.6.5 Multiple Vulnerabilities (macOS) | 1 May 202600:00 | – | nessus |
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18 May 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 24.9
CVSS 35.5
EPSS0.00146