CVE-2019-5721: wireshark Use After Free
CVSS: 5.5v3.0MediumModified
AliasesUBUNTU-CVE-2019-5721DEBIAN-CVE-2019-5721
Published 08-01-2019Last modified 04-08-2024
Vulnerability summary
CVE-2019-5721 is a medium (CVSS 5.5) Use After Free vulnerability in wireshark. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.4% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.0 (NVD)EPSS score
0.95%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 6 · Related 6Timeline
- 08-01-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In Wireshark 2.4.0 to 2.4.11, the ENIP dissector could crash. This was addressed in epan/dissectors/packet-enip.c by changing the memory-management approach so that a use-after-free is avoided.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.95%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.95% on 18-09-2026
18-09-202618-10-2026
EPSS score0.95%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugs.wireshark.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- wireshark< 2.6.1-1
Ubuntu1 product
- wireshark< 2.6.5-1~ubuntu14.04.1
Wireshark1 product
- wireshark≥ 2.4.0, ≤ 2.4.11
3 vendors · 3 products
References
8 links- code.wireshark.org/review/…X Refsource MISC
- bugs.wireshark.org/bugzilla/show_bug.cgi?id=14470X Refsource MISCREPORTExploitIssue TrackingVendor Advisory
