CVE-2009-1605

Exp

Heap-based buffer overflow in the loadexponentialfunc function in mupdf/pdf_function.c in MuPDF in the mupdf-20090223-win32 package, as used in SumatraPDF 0.9.3 and earlier, allows remote attackers to execute arbitrary code via a crafted PDF file. NOTE: some of these details are obtained from third party information.

Published: 2009-05-11 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2009-1605 is rated High Exploit Risk (72.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 7.04%, 91th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +4.07% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-1605

EDB-ID Source Kind Published Link
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-1605

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-10-21 2.97% 7.04% +4.07%
2 2025-09-30 2.21% 2.97% +0.76%
3 2025-03-30 2.21%

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1605

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 2.5 134c704f-9b21-4f2e-91b3-4a467353bcc0
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
8.6 10.0 [email protected]

Weakness enumeration for CVE-2009-1605

Affected software / configurations for CVE-2009-1605

Vendor Product Version Raw CPE
sumatrapdfreader sumatrapdf <= 0.9.3 cpe:2.3:a:sumatrapdfreader:sumatrapdf:*:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.1 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.1:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.2 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.2:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.3 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.3:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.4 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.4:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.5 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.5:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.6 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.6:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.7 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.7:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.8 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.8:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.8.1 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.8.1:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.9 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.9.1 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9.1:*:*:*:*:*:*:*
sumatrapdfreader sumatrapdf 0.9.2 cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.9.2:*:*:*:*:*:*:*

References for CVE-2009-1605

cvelogic Threat Intelligence