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CVE-2023-26084

LOW
3.7
CVSS Score
Published: March 15, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:42 AM UTC
1 product affected across 1 vendorAarch64cryptolib

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Severity
LOW3.7
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

The armv8_dec_aes_gcm_full() API of Arm AArch64cryptolib before 86065c6 fails to the verify the authentication tag of AES-GCM protected data, leading to a man-in-the-middle attack. This occurs because of an improperly initialized variable.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Aarch64cryptolib· Arm
95%
v < 2023-02-20
Affected range stops below 2023-02-20, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

PatchVendor Advisory
Source: [email protected]
https://github.com/ARM-software/AArch64cryptolib/security/advisories/GHSA-47c6-7x5x-r74g

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.7LOWCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-665

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