High severity7.5NVD Advisory· Published Nov 19, 2021· Updated Jun 17, 2026
CVE-2021-39923
CVE-2021-39923
Description
Large loop in the PNRP dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6Patches
Vulnerability mechanics
References
5- gitlab.com/wireshark/wireshark/-/issues/17684nvdIssue TrackingPatchVendor Advisory
- gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39923.jsonnvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/12/msg00015.htmlnvdMailing ListThird Party Advisory
- www.debian.org/security/2021/dsa-5019nvdThird Party Advisory
- www.wireshark.org/security/wnpa-sec-2021-11.htmlnvdVendor Advisory
News mentions
0No linked articles in our index yet.