How severe is CVE-2023-21578?

CVE-2023-21578 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-21578 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21578?

CVE-2023-21578 affects Adobe Photoshop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-21578?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-21578 published?

CVE-2023-21578 was published on 2023-02-17 and last updated on 2026-06-17.

CVE-2023-21578

CVE-2023-21578 is a medium-severity vulnerability in Adobe Photoshop with a CVSS 3.x base score of 5.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Adobe Photoshop
Published: 2023-02-17
Last modified: 2026-06-17

Description

Photoshop version 23.5.3 (and earlier), 24.1 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Frequently asked questions

What is CVE-2023-21578?: Photoshop version 23.5.3 (and earlier), 24.1 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
How severe is CVE-2023-21578?: CVE-2023-21578 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-21578 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21578?: CVE-2023-21578 affects Adobe Photoshop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-21578?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-21578 published?: CVE-2023-21578 was published on 2023-02-17 and last updated on 2026-06-17.

References

https://helpx.adobe.com/security/products/photoshop/apsb23-11.html

Affected products (1)

cpe:2.3:a:adobe:photoshop:*:*:*:*:*:*:*:*

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