SB2026021272 - Debian update for wireshark
Published: February 12, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 9 vulnerabilities.
1) Input validation error (CVE-ID: CVE-2025-9817)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the SSH dissector. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
2) Infinite loop (CVE-ID: CVE-2025-11626)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in MONGO dissector. A remote attacker can consume all available system resources and cause denial of service conditions.
3) Input validation error (CVE-ID: CVE-2025-13499)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the Kafka dissector. A remote attacker can trick a victim to read a malformed packet trace file and perform a denial of service (DoS) attack.
4) Input validation error (CVE-ID: CVE-2025-13945)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in HTTP3 dissector when decrypting traffic using a keylog file or loading a capture file that contains decryption secrets. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
5) Infinite loop (CVE-ID: CVE-2025-13946)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within the MEGACO dissector. A remote attacker can send specially crafted data over the network, consume all available system resources and cause denial of service conditions.
6) Input validation error (CVE-ID: CVE-2026-0959)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in IEEE 802.11 dissector. A remote attacker can send specially crafted input via the network monitored with Wireshark and perform a denial of service (DoS) attack.
7) Infinite loop (CVE-ID: CVE-2026-0960)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in HTTP3 dissector. A remote attacker can consume all available system resources and cause denial of service conditions.
8) Input validation error (CVE-ID: CVE-2026-0961)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in BLF file parser. A remote attacker can send specially crafted input via the network monitored with Wireshark and perform a denial of service (DoS) attack.
9) Input validation error (CVE-ID: CVE-2026-0962)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in SOME/IP-SD dissector. A remote attacker can send specially crafted input via the network monitored with Wireshark and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.