CVE-2026-48373: Acrobat Reader is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issu

highCVSS 7.8CVE-2026-48373

Acrobat Reader is affected by a Heap-based Buffer Overflow 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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 7.8
Published: 2026-07-17
Last updated: 2026-07-23
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-48373

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-483730.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-48373	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

medium[UPDATE] [medium] Adobe Acrobat and Adobe Acrobat Reader: Multiple Vulnerabilitiescert-bund

Recent advisories for Acrobat Reader is

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[UPDATE] [medium] Adobe Acrobat and Adobe Acrobat Reader: Multiple Vulnerabilitiescert-bund · 2026-07-20
unknownSecurity Alert: Alert Regarding Vulnerabilities in Adobe Acrobat and Reader (APSB26-63)jpcert · 2026-06-10
criticalexploitedCVE-2009-3459: Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerabilitycisa-kev · 2026-05-20
unknownSecurity Alert: Alert Regarding Vulnerabilities in Adobe Acrobat and Reader (APSB26-44)jpcert · 2026-04-15
criticalexploitedCVE-2026-34621: Adobe Acrobat and Reader Prototype Pollution Vulnerabilitycisa-kev · 2026-04-13
criticalexploitedCVE-2023-21608: Adobe Acrobat and Reader Use-After-Free Vulnerabilitycisa-kev · 2023-10-10