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CVE-2023-26369

Adobe Acrobat and Reader Out-of-Bounds Write

7.8 HIGHActively exploited (CISA KEV)EPSS 6.75%
  1. Published13 Sept 2023
  2. Added to CISA KEV14 Sept 2023
  3. Remediation due5 Oct 2023
Actively exploited (CISA KEV)

Adobe Acrobat and Reader contains an out-of-bounds write vulnerability that allows for code execution.

Added to KEV: 14 Sept 2023Federal remediation due: 5 Oct 2023

Description

Acrobat Reader versions 23.003.20284 (and earlier), 20.005.30516 (and earlier) and 20.005.30514 (and earlier) are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Adobe Acrobat≥ 20.001.3005 < 20.005.30524
Adobe Acrobat Dc≥ 15.007.20033 < 23.006.20320
Adobe Acrobat Reader≥ 20.001.3005 < 20.005.30524
Adobe Acrobat Reader Dc≥ 15.007.20033 < 23.006.20320

Remediation

Fixed in
Adobe Acrobat≥ 20.005.30524
Adobe Acrobat Dc≥ 23.006.20320
Adobe Acrobat Reader≥ 20.005.30524
Adobe Acrobat Reader Dc≥ 23.006.20320

References

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Frequently asked

Is CVE-2023-26369 being actively exploited?

Yes. CVE-2023-26369 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 14 Sept 2023.

How severe is CVE-2023-26369?

CVE-2023-26369 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 6.75% probability of exploitation.

Which products are affected by CVE-2023-26369?

Affected products include Adobe Acrobat, Adobe Acrobat Dc, Adobe Acrobat Reader, Adobe Acrobat Reader Dc.

How do I fix CVE-2023-26369?

Upgrade affected software to a fixed version, for example Adobe Acrobat 20.005.30524, Adobe Acrobat Dc 23.006.20320, Adobe Acrobat Reader 20.005.30524 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-26369 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.