CVE-2022-27939

tcprewrite in Tcpreplay 4.4.1 has a reachable assertion in get_layer4_v6 in common/get.c.

5.5 MediumFix available

tcprewrite in Tcpreplay 4.4.1 has a reachable assertion in get_layer4_v6 in common/get.c.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.03%Up 0.1 points since Mar 27, 2022

What each source reports

NVD Score used 5.5

tcprewrite in Tcpreplay 4.4.1 has a reachable assertion in get_layer4_v6 in common/get.c.

Record: CVE-2022-27939
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-617
Updated: 2026-11-02

CVE List No score

tcprewrite in Tcpreplay 4.4.1 has a reachable assertion in get_layer4_v6 in common/get.c.

Record: CVE-2022-27939
Updated: 2026-11-02

EUVDEUVD-2022-32427 No score

tcprewrite in Tcpreplay 4.4.1 has a reachable assertion in get_layer4_v6 in common/get.c.

Record: EUVD-2022-32427
Updated: 2026-11-03

GitHub AdvisoriesGHSA-xx6r-3qqr-wh55 5.5

tcprewrite in Tcpreplay 4.4.1 has a reachable assertion in get_layer4_v6 in common/get.c.

tcprewrite in Tcpreplay 4.4.1 has a reachable assertion in get_layer4_v6 in common/get.c.

Record: GHSA-xx6r-3qqr-wh55
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-617
Updated: 2026-11-02

OSVDEBIAN-CVE-2022-27939 5.5

tcprewrite in Tcpreplay 4.4.1 has a reachable assertion in get_layer4_v6 in common/get.c.

Record: DEBIAN-CVE-2022-27939
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-03

OSV No score

tcprewrite in Tcpreplay 4.4.1 has a reachable assertion in get_layer4_v6 in common/get.c.

Record: CVE-2022-27939
Updated: 2026-11-02

OSVMGASA-2022-0345 No score

Updated tcpreplay packages fix security vulnerability

tcprewrite in Tcpreplay 4.4.1 has a reachable assertion in get_layer4_v6 in common/get.c. (CVE-2022-27939)

tcprewrite in Tcpreplay 4.4.1 has a heap-based buffer over-read in get_ipv6_next in common/get.c. (CVE-2022-27940)

tcprewrite in Tcpreplay 4.4.1 has a heap-based buffer over-read in get_l2len_protocol in common/get.c. (CVE-2022-27941)

tcpprep in Tcpreplay 4.4.1 has a heap-based buffer over-read in parse_mpls in common/get.c. (CVE-2022-27942)

Tcpreplay version 4.4.1 contains a memory leakage flaw in fix_ipv6_checksums() function. The highest threat from this vulnerability is to data confidentiality. (CVE-2022-28487)

The component tcprewrite in Tcpreplay v4.4.1 was discovered to contain a heap-based buffer overflow in get_ipv6_next at common/get.c:713. (CVE-2022-37047)

The component tcprewrite in Tcpreplay v4.4.1 was discovered to contain a heap-based buffer overflow in get_l2len_protocol at common/get.c:344. (CVE-2022-37048)

The component tcpprep in Tcpreplay v4.4.1 was discovered to contain a heap-based buffer overflow in parse_mpls at common/get.c:150. (CVE-2022-37049)

Record: MGASA-2022-0345
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`tcpreplay` Debian:12	before 4.4.2-1	4.4.2-1
`tcpreplay` Debian:13	before 4.4.2-1	4.4.2-1
`tcpreplay` Debian:14	before 4.4.2-1	4.4.2-1
`tcpreplay` Mageia:8 From an advisory covering 8 CVEs	before 4.4.2-1.mga8	4.4.2-1.mga8

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts	OSV
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-27939 is a medium vulnerability (CVSS 5.5) in Broadcom Tcpreplay, published March 26, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.03%, the 64th percentile. Fixed in tcpreplay 4.4.2-1.

References

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