How severe is CVE-2022-48251?

CVE-2022-48251 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2022-48251 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-48251?

CVE-2022-48251 primarily affects Arm Cortex-a53 Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-48251?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-48251 published?

CVE-2022-48251 was published on 2023-01-10 and last updated on 2026-06-17.

CVE-2022-48251

CVE-2022-48251 is a high-severity vulnerability in Arm Cortex-a53 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-203.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Arm Cortex-a53 Firmware
Published: 2023-01-10
Last modified: 2026-06-17

Description

The AES instructions on the ARMv8 platform do not have an algorithm that is "intrinsically resistant" to side-channel attacks. NOTE: the vendor reportedly offers the position "while power side channel attacks ... are possible, they are not directly caused by or related to the Arm architecture."

Frequently asked questions

What is CVE-2022-48251?: The AES instructions on the ARMv8 platform do not have an algorithm that is "intrinsically resistant" to side-channel attacks. NOTE: the vendor reportedly offers the position "while power side channel attacks ... are possible, they are not directly caused by or related to the Arm architecture."
How severe is CVE-2022-48251?: CVE-2022-48251 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2022-48251 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-48251?: CVE-2022-48251 primarily affects Arm Cortex-a53 Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-48251?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-48251 published?: CVE-2022-48251 was published on 2023-01-10 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:o:arm:cortex-a53_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a55_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a57_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a72_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a73_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a75_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a76_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a76ae_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a77_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a78_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Arm Cortex-a53 Firmware

CVE-2020-13844 — Medium (CVSS 5.5): Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow…

All CVEs affecting Arm Cortex-a53 Firmware →

Other CWE-203 (Observable Discrepancy) vulnerabilities

CVE-2019-25337 — Critical (CVSS 9.8): OwnCloud 8.1.8 contains a username enumeration vulnerability that allows remote attackers to discover user accounts by…
CVE-2026-23519 — Critical (CVSS 9.8): RustCrypto CMOV provides conditional move CPU intrinsics which are guaranteed on major platforms to execute in…
CVE-2025-27667 — Critical (CVSS 9.8): Vasion Print (formerly PrinterLogic) before Virtual Appliance Host 22.0.843 Application 20.0.1923 allows Administrative…
CVE-2024-25714 — Critical (CVSS 9.8): In Rhonabwy through 1.1.13, HMAC signature verification uses a strcmp function that is vulnerable to side-channel…
CVE-2024-25191 — Critical (CVSS 9.8): php-jwt 1.0.0 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass…
CVE-2024-25190 — Critical (CVSS 9.8): l8w8jwt 2.2.1 uses memcmp (which is not constant time) to verify authentication, which makes it easier to bypass…

Browse all CWE-203 (Observable Discrepancy) vulnerabilities →