Security readout for executives and security teams
Plain-English summary
CVE-2018-19625 is a Wireshark crash issue in the packet dissection engine. Affected versions could read past heap buffer boundaries while analyzing traffic data, causing the application to crash. The sources do not show code execution or confirmed exploitation.
Executive priority
Treat as a targeted reliability and operations risk. It can disrupt network analysis workflows, but the provided evidence does not support emergency treatment for active exploitation or code execution.
Technical view
Wireshark 2.6.0 through 2.6.4 and 2.4.0 through 2.4.10 contain a heap-based buffer over-read in epan/tvbuff_composite.c. The flaw affects dissection processing and was addressed by preventing the over-read condition.
Likely exposure
Exposure is most likely on analyst workstations, servers, or appliances running affected Wireshark builds that inspect packet captures or live network traffic.
Exploitation context
The provided sources support a crash impact, not active exploitation. CISA KEV is false, and no cited source in the bundle confirms in-the-wild exploitation.
Researcher notes
Focus validation on affected version ranges and whether dissection of untrusted traffic data is possible. The public record identifies the vulnerable file and fix direction, but the bundle does not provide CVSS, CWE, or exploitation details.
Mitigation direction
- Upgrade affected Wireshark installations or apply vendor security updates.
- Prioritize systems used for packet capture, malware analysis, or network troubleshooting.
- Check Debian, openSUSE, Oracle, and Wireshark advisories for environment-specific packages.
- Avoid using affected versions to open untrusted packet captures.
Validation and detection
- Inventory Wireshark versions across analyst workstations and managed servers.
- Confirm no systems run Wireshark 2.6.0-2.6.4 or 2.4.0-2.4.10.
- Review OS package security update status for Wireshark.
- Verify remediation against Wireshark and distribution advisories.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-19625 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14466CVE reference · x_refsource_MISC
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=dc4d209f39132a4ae05675a11609176ae9705cfcCVE reference · x_refsource_MISC
- [debian-lts-announce] 20190115 [SECURITY] [DLA 1634-1] wireshark security updateCVE reference · mailing-list, x_refsource_MLIST
- https://www.wireshark.org/security/wnpa-sec-2018-51.htmlCVE reference · x_refsource_MISC
- DSA-4359CVE reference · vendor-advisory, x_refsource_DEBIAN
- https://www.oracle.com/security-alerts/cpuapr2020.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.