WebCore in Apple WebKit build 18794 allows remote attackers to cause a denial of service…
Priority MEDIUM 46CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-476.
Summary
WebCore in Apple WebKit build 18794 allows remote attackers to cause a denial of service (null dereference and application crash) via a TD element with a large number in the ROWSPAN attribute, as demonstrated by a crash of OmniWeb 5.5.3 on Mac OS X 10.4.8, a different vulnerability than CVE-2006-2019.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04555 91st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apple:safari:2.0.4_419.3:*:*:*:*:*:*:* | 2.0.4_419.3 | Vulnerable | Apple |
| cpe:2.3:a:apple:webkit:build_18794:*:*:*:*:*:*:* | build_18794 | Vulnerable | Apple |
| cpe:2.3:a:omnigroup:omniweb:5.5.3:*:*:*:*:*:*:* | 5.5.3 | Vulnerable | Omnigroup |
| cpe:2.3:o:apple:mac_os_x:10.4.8:*:*:*:*:*:*:* | 10.4.8 | Vulnerable | Apple |
- cpe:2.3:a:apple:safari:2.0.4_419.3:*:*:*:*:*:*:* Versions 2.0.4_419.3 Vulnerable ·Apple
- cpe:2.3:a:apple:webkit:build_18794:*:*:*:*:*:*:* Versions build_18794 Vulnerable ·Apple
- cpe:2.3:a:omnigroup:omniweb:5.5.3:*:*:*:*:*:*:* Versions 5.5.3 Vulnerable ·Omnigroup
- cpe:2.3:o:apple:mac_os_x:10.4.8:*:*:*:*:*:*:* Versions 10.4.8 Vulnerable ·Apple
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2007-0342
- 2026-10-03 Alias added: GHSA-c398-43hf-w2rg
- 2026-10-16 EPSS moved to the 90th–95th percentile
References
Sources
- CVE-2007-0342 · CVE Program
- CVE-2007-0342 · NVD
- FIRST EPSS
- GHSA-c398-43hf-w2rg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences