CVE-2023-38600
A public proof of concept exists; no exploitation attested.
- Published2023-07-27
- Fixed in16.6
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
The issue was addressed with improved checks. This issue is fixed in iOS 16.6 and iPadOS 16.6, tvOS 16.6, macOS Ventura 13.5, Safari 16.6, watchOS 9.6. Processing web content may lead to arbitrary code execution.
Timeline
dates in UTC- 2023-07-2701:15CVE publishedNVD
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-38600?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-38600?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 16.6 | < 16.6 | 16.6 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 16.6 | < 16.6 | 16.6 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 13.x | ≥ 13.0, < 13.5 | 13.5 | NVD |
3 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- webkit2gtk3AlmaLinux:9all versions · fixed in 2.40.5-1.el9and 3 other packages
- webkit2gtk3AlmaLinux:8all versions · fixed in 2.40.5-1.el8and 3 other packages
Fix
- Update Apple ipados to 16.6
Advisories and patches
- support.apple.comVendor Advisory
- support.apple.comVendor Advisory
- support.apple.comVendor Advisory
- support.apple.comVendor Advisory
- support.apple.comVendor Advisory
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- 1 repository, unverifiedafrojack1/cve202338600test.github.io PoC-in-GitHub
Sources
- CISA-ADPSSVC decisionnone2025-04-23
- OpenCVESSVC decisionnone—
- CISA-ADPCVSS 3.18.82025-05-05
- NVDCVSS 3.18.8read 2026-10-23
- FIRST EPSSEPSS score1.4 %2026-10-23
- PoC-in-GitHubproof of concept1read 2026-10-23
- OSVaffected packages—
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- 2023-07-27
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2023-38600?
Is CVE-2023-38600 actively exploited?
What is the CVSS score for CVE-2023-38600?
Running webkit2gtk3? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.