CVE-2023-41993
The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
- CVSS
- 8.8Highscored by CISA
- Exploited in the wild
- Yes, in CISA KEV since 25 Sept 2023CISA deadline for US federal agencies: 16 Oct 2023unvetted proof-of-concept code on github
- EPSS
- 23.7%chance of exploitation in the next 30 daystop 3% of scored CVEsFIRST score of 11 Nov 2026
- Fix
- Fixed in 1.8.0, 8.0.411per the vendor
- Published
- 21 Sept 2023analysed here 12 Nov 2026
Do first. Upgrade to a fixed release: 1.8.0, 8.0.411.
Summary
Triage
The summary, impact and action text on this page are written by our AI analysis pipeline, or taken from the NVD description when a CVE was imported from NVD. They are not the vendor's wording: check them against the sources. A longer AI executive summary and technical analysis are generated for signed-in accounts on the Max plan.
Affected products
| Product | Affected versions | Vendor says fixed in |
|---|---|---|
| Javafrom the Bitnami advisory, via OSV | < 1.8.0>= 1.9.0 and < 8.0.411Vendor says fixed in: 1.8.0, 8.0.411 | |
| Apple macOS | < 14Vendor says fixed in: not stated |
As published in the CVE Program record, and, for products that ship the affected component, in the advisory named beside them. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
Products named in our analysis
- apple:ipados
- apple:iphone_os
- apple:macos
- fedoraproject:fedora
- debian:debian_linux
- oracle:graalvm
- oracle:jdk
- oracle:jre
- netapp:active_iq_unified_manager
- netapp:cloud_insights_acquisition_unit
- netapp:cloud_insights_storage_workload_security_agent
- netapp:oncommand_insight
- netapp:oncommand_workflow_automation
- webkitgtk:webkitgtk\+
Fix and mitigation
WAF and other mitigations
Can a WAF block it? Partly. The bug can be reached over the network, so generic WAF rules may stop some attacks. Its weakness type is unknown, so we cannot be more precise.
Also consider: patch
Based on the weakness type only; no CVE-specific evidence yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Remediation steps (AI-written)
Step-by-step remediation is generated for accounts on the Max plan, for CVEs that match a technology in their stack. Add this technology to your stack to see the fix checklist.
Exploitation evidence
- CISA KEV catalog
- Listed since 25 Sept 2023.
- CISA due date
- 16 Oct 2023, the remediation deadline for US federal agencies
- CISA required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Public exploit code
- Unvetted proof-of-concept code on GitHub: 5 GitHub proofs of concept
- CISA SSVC
- exploitation active, automatable no, technical impact totalAssessed by CISA 11 Jan 2024 (SSVC 2.0.3). Exploitation is none, poc (public proof of concept) or active.
GitHub proofs of concept
- po6ix/POC-for-CVE-2023-41993203 stars
- hrtowii/cve-2023-41993-test16 stars
- 0x06060606/CVE-2023-419935 stars
- J3Ss0u/CVE-2023-419930 stars
and 1 more repositories
Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.
Timeline
- 21 Sept 2023Published
- 25 Sept 2023Added to CISA KEV (exploited in the wild)3 days later
- 15 Oct 2023First proof-of-concept repository on GitHub (unvetted)20 days later
- 16 Oct 2023CISA remediation due date (US federal agencies)1 day later
- 11 Jan 2024CISA SSVC assessment: exploitation active87 days (about 3 months) later
- 4 Nov 2025CVE record last updated664 days (about 2 years) later
- 12 Nov 2026Analysed by vulneraibility.com373 days (about 1 year) later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
| Metric | Value | What it means |
|---|---|---|
| Attack vector | NetworkReachable over the internet or any routable network. | Reachable over the internet or any routable network. |
| Attack complexity | LowRepeatable attack, no special conditions. | Repeatable attack, no special conditions. |
| Privileges required | NoneThe attacker needs no prior access. | The attacker needs no prior access. |
| User interaction | RequiredA victim must click, open or otherwise cooperate. | A victim must click, open or otherwise cooperate. |
| Scope | UnchangedImpact stays within the vulnerable component. | Impact stays within the vulnerable component. |
| Confidentiality | HighTotal data disclosure possible. | Total data disclosure possible. |
| Integrity | HighComplete modification possible. | Complete modification possible. |
| Availability | HighFull outage possible. | Full outage possible. |
Common questions
Is CVE-2023-41993 being exploited?
Yes. CVE-2023-41993 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2023-41993?
CVE-2023-41993 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2023-41993?
Yes. A fix has been recorded for CVE-2023-41993. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2023-41993 affect?
CVE-2023-41993 affects apple:ipados, apple:iphone_os, apple:macos, fedoraproject:fedora, and 10 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
References
7 references in the CVE record, grouped by the tags the record gives them.
Other links (7)
- support.apple.com /en-us/HT213940
- security.gentoo.org /glsa/202401-33
- security.netapp.com /advisory/ntap-20240426-0004/
- cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-41993
- webkitgtk.org /security/WSA-2023-0009.html
- support.apple.com /kb/HT213930
Show 1 more
- support.apple.com /kb/HT213926
Where the data on this page comes from
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- PoC-in-GitHub: GitHub repositories that claim a proof of concept
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.
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