VulnerabilityModified
CVE-2018-19519
In tcpdump 4.9.2, a stack-based buffer over-read exists in the print_prefix function of print-hncp.c via crafted packet data because of missing initialization.
MEDIUM 5.5EPSS 2.59%
Does this matter?
Lower severity and a low EPSS score (2.59%). Track it; it rarely justifies an emergency change on its own.
Description
In tcpdump 4.9.2, a stack-based buffer over-read exists in the print_prefix function of print-hncp.c via crafted packet data because of missing initialization.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 2.59% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125, CWE-909
- Affected
- tcpdump/tcpdump
- Source
- cve@mitre.org
EPSS moved from 3.5% on 21 September 2026 to 2.6% on 27 October 2026.
References
- http://www.securityfocus.com/bid/106098Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:3976
- https://github.com/zyingp/temp/blob/master/tcpdump.mdExploit, Mitigation, Third Party Advisory
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44516
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU/
- https://usn.ubuntu.com/4252-1/
- https://usn.ubuntu.com/4252-2/
- http://www.securityfocus.com/bid/106098Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:3976
- https://github.com/zyingp/temp/blob/master/tcpdump.mdExploit, Mitigation, Third Party Advisory
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44516
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU/
- https://usn.ubuntu.com/4252-1/
- https://usn.ubuntu.com/4252-2/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.