Linux Kernel up to 7.2.5 atmel-ecc atmel_ecdh_compute_shared_secret input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$5k-$25k0.00-

Summaryinfo

A vulnerability was found in Linux Kernel up to 7.2.5. It has been declared as very critical. The impacted element is the function atmel_ecdh_compute_shared_secret of the component atmel-ecc. The manipulation results in input validation. This vulnerability was named CVE-2026-93160. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.2.5. It has been classified as very critical. Affected is the function atmel_ecdh_compute_shared_secret of the component atmel-ecc. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: crypto: atmel-ecc - reject hardware ECDH without a public key The hardware ECDH path in atmel_ecdh_compute_shared_secret() uses the private key stored in the device. However, the public key is cached only after atmel_ecdh_set_secret() successfully generated that private key for the current tfm. atmel_ecdh_generate_public_key() already rejects requests when no public key is cached. Add the same check to atmel_ecdh_compute_shared_secret() to prevent the device from using a private key that was not generated for the current tfm.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2026-93160 since 09/17/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/17/2026).

Upgrading to version 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6 or 7.3-rc1 eliminates this vulnerability. Applying the patch 5e33791dfcc6459e402a524669093cd953d5b2df/33241f198287960bba5fc2251400896762650bfa/3ea8b780d68f02fe235c5051ce8ac4b4940b9259/6457162f74f45284ade2da644a4f0c54758ac0a6/2b40bab362d2b598f34e5ccd4694cedc3c2553d4/e64d6f1aae8c837cb3f0446bf44108226d7370f4/add28e9988902d29ea93f4869280b4a16a049ea5/f240f9b588f4e2de89822adebf560a96b5d263ed is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.270/5.15.221/6.1.188/6.6.157/6.12.110/6.18.52/7.2.6/7.3-rc1
Patch: 5e33791dfcc6459e402a524669093cd953d5b2df/33241f198287960bba5fc2251400896762650bfa/3ea8b780d68f02fe235c5051ce8ac4b4940b9259/6457162f74f45284ade2da644a4f0c54758ac0a6/2b40bab362d2b598f34e5ccd4694cedc3c2553d4/e64d6f1aae8c837cb3f0446bf44108226d7370f4/add28e9988902d29ea93f4869280b4a16a049ea5/f240f9b588f4e2de89822adebf560a96b5d263ed

Timelineinfo

09/17/2026 Advisory disclosed
09/17/2026 +0 days CVE reserved
09/17/2026 +0 days VulDB entry created
09/17/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-93160 (🔒)
GCVE (CVE): GCVE-0-2026-93160
GCVE (VulDB): GCVE-100-407238

Entryinfo

Created: 09/17/2026 23:59
Changes: 09/17/2026 23:59 (59)
Complete: 🔍
Cache ID: 216::103

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