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CVE-2025-9649— appneta tcpreplay send_packets.c calc_sleep_time divide by zero

Quick assessment

Affected
appneta tcpreplay
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Appneta Tcpreplay是Appneta开源的一款网络报文回放工具。 Appneta Tcpreplay 4.5.1版本存在安全漏洞，该漏洞源于文件send_packets.c中函数calc_sleep_time存在除零错误。

CVSS 3.3 · Low EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-9649

Vulnerability Information
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Vulnerability Title
appneta tcpreplay send_packets.c calc_sleep_time divide by zero
Source: CVE Program / CVE List V5
Vulnerability 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."
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
除零错误
Source: CVE Program / CVE List V5
Vulnerability Title
Appneta Tcpreplay 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Appneta Tcpreplay是Appneta开源的一款网络报文回放工具。 Appneta Tcpreplay 4.5.1版本存在安全漏洞，该漏洞源于文件send_packets.c中函数calc_sleep_time存在除零错误。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
appneta tcpreplay 4.5.1 -

II. Public POCs for CVE-2025-9649

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III. Intelligence Information for CVE-2025-9649

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Vendor Advisories for CVE-2025-9649 (1)

Other References for CVE-2025-9649 (1)

IV. Related Vulnerabilities

Same product: tcpreplay
Same vendor: appneta
Same weakness: CWE-369

V. Comments for CVE-2025-9649

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