CVE-2023-33866
highpriority · track · 35EPSS 0.009 · 60 %ileDEEURUUSEPSS · scored 2026-10-27
A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 12.1.2.15332. By prematurely deleting objects associated with pages, a specially crafted PDF document can trigger the reuse of previously freed memory, which can lead to arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (8)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2023-1839Foxit Reader: Mehrere Schwachstellen ermöglichen CodeausführungDeutsch2023-07-19csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Foxit Reader ausnutzen, um beliebigen Programmcode auszuführen.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-33866/cnnvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2023-1757cnnvd
- https://www.foxitsoftware.cn/pdf-reader/?agent=foxit&MD=menuPatchcnnvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2023-1757enisa_euvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2023-1757ExploitThird Party Advisorynvd
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1757nvd
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