Adobe Acrobat Reader up to 20.005.30514/20.005.30516/23.003.20284 out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.9$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Adobe Acrobat Reader up to 20.005.30514/20.005.30516/23.003.20284. The impacted element is an unknown function. This manipulation causes out-of-bounds write. This vulnerability appears as CVE-2023-26369. The attack may be initiated remotely. In addition, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Adobe Acrobat Reader up to 20.005.30514/20.005.30516/23.003.20284 (Document Reader Software). Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was presented 09/13/2023 as apsb23-34. The advisory is shared at helpx.adobe.com. This vulnerability is known as CVE-2023-26369 since 02/22/2023. It demands that the victim is doing some kind of user interaction. Technical details are unknown but an exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/21/2025).

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 09/14/2023 with a due date of 10/05/2023:

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Zero-Day.cz (809). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (Adobe Systems Incorporated): 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/22/2023 🔍
09/13/2023 +202 days 🔍
09/13/2023 +0 days 🔍
10/21/2025 +769 days 🔍

Sourcesinfo

Vendor: adobe.com

Advisory: apsb23-34
Status: Confirmed

CVE: CVE-2023-26369 (🔍)
GCVE (CVE): GCVE-0-2023-26369
GCVE (VulDB): GCVE-100-239653
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/13/2023 11:50
Updated: 10/21/2025 22:15
Changes: 09/13/2023 11:50 (50), 04/29/2024 12:30 (26), 06/07/2024 10:07 (2), 09/28/2024 16:14 (2), 04/22/2025 00:58 (3), 10/21/2025 22:15 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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