CVE-2020-23273

Name: CVE-2020-23273
Creator: NVD / NIST
Published: 2021-09-22T00:15:08.727+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2020-23273 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Heap-buffer overflow in the randomize_iparp function in edit_packet.c. of Tcpreplay v4.3.2 allows attackers to cause a denial of service (DOS) via a crafted pcap.. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

Heap-buffer overflow in the randomize_iparp function in edit_packet.c. of Tcpreplay v4.3.2 allows attackers to cause a denial of service (DOS) via a crafted pcap.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.63%

45.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Broadcom	Tcpreplay	4.3.2

References

https://github.com/appneta/tcpreplay/issues/579Exploit, Issue Tracking, Third Party Advisory
https://github.com/appneta/tcpreplay/issues/579Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Sep 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-23273?

Heap-buffer overflow in the randomize_iparp function in edit_packet.c. of Tcpreplay v4.3.2 allows attackers to cause a denial of service (DOS) via a crafted pcap.

How severe is CVE-2020-23273?

CVE-2020-23273 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2020-23273?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-23273?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST