Medium severity · published Aug 29, 2025
CVE-2025-9649
appneta tcpreplay send_packets.c calc_sleep_time divide by zero
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
A security vulnerability has been detected in appneta tcpreplay 4.5.1. Impacted is the function calc_sleep_time of the file send_packets.c. Such manipulation leads to divide by zero. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. Upgrading to version 4.5.3-beta3 is recommended to address this issue. It is advisable to upgrade the affected component. The vendor confirms in a GitHub issue reply: "Was able to reproduce in 6fcbf03 but NOT 4.5.3-beta3."
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TC
tcpreplay · appneta
4.5.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-9649
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-9649
Exploit
https://drive.google.com/file/d/16QQtZvUrMbF-i_1cGt5hNWmkn-YVyBOM/view?usp=sharing
Exploit
https://github.com/appneta/tcpreplay/issues/968
Issue Tracking
https://github.com/appneta/tcpreplay/issues/968#issuecomment-3226338070
Permissions Required
https://vuldb.com/?ctiid.321855
Third Party Advisory
https://vuldb.com/?id.321855
Third Party Advisory
https://vuldb.com/?submit.630493
More from tcpreplay
5.5
CVE-2025-9386
appneta tcpreplay tcprewrite get.c get_l2len_protocol use after free
5.5
CVE-2025-9385
appneta tcpreplay tcprewrite edit_packet.c fix_ipv6_checksums use after free
5.5
CVE-2025-9384
appneta tcpreplay parse_args.c tcpedit_post_args null pointer dereference
5.3
CVE-2025-9157
appneta tcpreplay tcprewrite edit_packet.c untrunc_packet use after free