CVE-2026-28815: A remote attacker can supply a short X-Wing HPKE encapsulated key and trigger an out-of-bounds read in the C decapsulation path, potentially causing a crash or memory disclosure depending on runtime protections. in Apple macOS
CVE-2026-28815 is a high-severity vulnerability in Apple macOS where a remote attacker can supply a short X-Wing HPKE encapsulated key, triggering an out-of-bounds read in the C decapsulation path. This can cause a crash or potentially disclose memory depending on runtime protections. The issue affects swift-crypto version 4. 0. 0 and is fixed in version 4. 3. 1. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds read (CWE-125) triggered by a specially crafted short X-Wing HPKE encapsulated key supplied remotely to the C decapsulation path in Apple macOS's swift-crypto library version 4.0.0. The out-of-bounds read can lead to application crashes or memory disclosure depending on runtime protections. The CVSS v3.1 base score is 7.5, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability (crash). The issue is resolved in swift-crypto version 4.3.1.
Potential Impact
Successful exploitation can cause denial of service via application crash or potential memory disclosure, which may leak sensitive information depending on the environment's runtime protections. There is no indication of confidentiality or integrity impact beyond memory disclosure. No known exploits are reported in the wild.
Mitigation Recommendations
A fix is available in swift-crypto version 4.3.1. Users and administrators should update to this version to remediate the vulnerability. Since this is not a cloud service, patching the affected software is required. Patch status is confirmed by the vendor advisory indicating the issue is fixed in swift-crypto 4.3.1.
CVE-2026-28815: A remote attacker can supply a short X-Wing HPKE encapsulated key and trigger an out-of-bounds read in the C decapsulation path, potentially causing a crash or memory disclosure depending on runtime protections. in Apple macOS
Description
CVE-2026-28815 is a high-severity vulnerability in Apple macOS where a remote attacker can supply a short X-Wing HPKE encapsulated key, triggering an out-of-bounds read in the C decapsulation path. This can cause a crash or potentially disclose memory depending on runtime protections. The issue affects swift-crypto version 4. 0. 0 and is fixed in version 4. 3. 1. There are no known exploits in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds read (CWE-125) triggered by a specially crafted short X-Wing HPKE encapsulated key supplied remotely to the C decapsulation path in Apple macOS's swift-crypto library version 4.0.0. The out-of-bounds read can lead to application crashes or memory disclosure depending on runtime protections. The CVSS v3.1 base score is 7.5, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability (crash). The issue is resolved in swift-crypto version 4.3.1.
Potential Impact
Successful exploitation can cause denial of service via application crash or potential memory disclosure, which may leak sensitive information depending on the environment's runtime protections. There is no indication of confidentiality or integrity impact beyond memory disclosure. No known exploits are reported in the wild.
Mitigation Recommendations
A fix is available in swift-crypto version 4.3.1. Users and administrators should update to this version to remediate the vulnerability. Since this is not a cloud service, patching the affected software is required. Patch status is confirmed by the vendor advisory indicating the issue is fixed in swift-crypto 4.3.1.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-03-03T16:36:03.967Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69cf565a0a160ebd92cd3eb5
Added to database: 4/3/2026, 5:55:38 AM
Last enriched: 4/10/2026, 9:13:58 AM
Last updated: 5/20/2026, 8:52:28 PM
Views: 103
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