Vulnerability · CVE-2026-39870
The issue was addressed with improved memory handling.
Published May 11, 2026 · catalog updated Jun 17, 2026 · The issue was addressed
Check if you run it
No confirmed exploitation is on record for CVE-2026-39870. EPSS is 0.44%. Act only if a listed version of The issue was addressed is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (The issue was addressed).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.44%
- Remediation
- Not established
- Affected products
- cpe apple/macos
The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Processing a maliciously crafted image may corrupt process memory.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe apple/macosversion unspecified
How to fix CVE-2026-39870
Recommended remediation
No required-action text, fix commit, or clear fixed-version range is stored yet.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-39870. EPSS is 0.44%. Act only if a listed version of The issue was addressed is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-119: Buffer Overflow. EPSS 0.44%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 11, 2026 · NIST NVD
Detected
The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Processing a maliciously crafted image may corrupt process memory.
Jun 17, 2026 · NIST NVD
Updated
The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Processing a maliciously crafted image may corrupt process memory.
Sources
- CVE.orgVulnerability recordCVE-2026-39870
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-39870
30-day exploitation probability 0.4%
first.org - NIST NVDVulnerability recordCVE-2026-39870
The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Processing a maliciously crafted image may corrupt process memory.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.