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Vulnerability record · CVE-2025-9649 · published 29 August 2025

CVE-2025-9649: Broadcom tcpreplay divide by zero vulnerability

Broadcom · Tcpreplay

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."

1.9 CVSS 4.0 Low EPSS 0.25% · top 85.1% CWE-369 · Divide by zeroCWE-404 · Improper resource shutdown
1.9CVSS 4.0 base score, v2 1.7
0.25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://drive.google.com/file/d/16QQtZvUrMbF-i_1cGt5hNWmkn-YVyBOM/view?usp=sharing Exploit
https://github.com/appneta/tcpreplay/issues/968 ExploitIssue TrackingVendor Advisory
https://github.com/appneta/tcpreplay/issues/968#issuecomment-3226338070 Issue Tracking
https://vuldb.com/?ctiid.321855 Permissions RequiredVDB Entry
https://vuldb.com/?id.321855 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.630493 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.630494 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-18408Broadcom tcpreplay use after free vulnerabilityA use-after-free was discovered in the tcpbridge binary of Tcpreplay 4.3.0 beta1. The issue gets triggered in the function post_args() at tcpbridge.c…EPSS 2.3%9.1CVE-2020-12740Broadcom tcpreplay out-of-bounds read vulnerabilitytcprewrite in Tcpreplay through 4.3.2 has a heap-based buffer over-read during a get_c operation. The issue is being triggered in the function get_ip…EPSS 1.7%7.8CVE-2025-51006Broadcom tcpreplay double free vulnerabilityWithin tcpreplay's tcprewrite, a double free vulnerability has been identified in the dlt_linuxsll2_cleanup() function in plugins/dlt_linuxsll2/linux…EPSS 0.19%7.8CVE-2024-3024Broadcom tcpreplay heap-based buffer overflow vulnerabilityA vulnerability was found in appneta tcpreplay up to 4.4.4. It has been classified as problematic. This affects the function get_layer4_v6 of the fil…EPSS 0.44%7.8CVE-2022-37049Broadcom tcpreplay out-of-bounds write vulnerabilityThe component tcpprep in Tcpreplay v4.4.1 was discovered to contain a heap-based buffer overflow in parse_mpls at common/get.c:150. NOTE: this is dif…EPSS 0.42%7.8CVE-2022-37047Broadcom tcpreplay out-of-bounds write vulnerabilityThe 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. NOTE: this …EPSS 0.42%7.8CVE-2022-37048Broadcom tcpreplay out-of-bounds write vulnerabilityThe 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. NOTE: …EPSS 0.42%7.8CVE-2022-27418Broadcom tcpreplay out-of-bounds write vulnerabilityTcpreplay v4.4.1 has a heap-based buffer overflow in do_checksum_math at /tcpedit/checksum.c.EPSS 0.85%

Source: NIST National Vulnerability Database (record CVE-2025-9649), CISA KEV, FIRST EPSS (scores of 2026-10-04). This page is refreshed as NVD updates the record.