CVE-2005-1935

Exp

Heap-based buffer overflow in the BERDecBitString function in Microsoft ASN.1 library (MSASN1.DLL) allows remote attackers to execute arbitrary code via nested constructed bit strings, which leads to a realloc of a non-null pointer and causes the function to overwrite previously freed memory, as demonstrated using a SPNEGO token with a constructed bit string during HTTP authentication, and a different vulnerability than CVE-2003-0818. NOTE: the researcher has claimed that MS:MS04-007 fixes this issue.

Published: 2005-06-13 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-1935 is rated High Exploit Risk (80.5/100): CVSS High severity, with high exploitation likelihood (EPSS 34.30%, 97th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.59% over the last day, indicating growing attacker interest. 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-2005-1935

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

Exploit prediction scoring system (EPSS) score for CVE-2005-1935

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 2026-05-04 32.71% 34.30% +1.59%
2 2025-12-28 38.28% 32.71% -5.57%
3 2025-12-27 — 38.28% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-1935

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2005-1935

Affected software / configurations for CVE-2005-1935

Vendor Product Version Raw CPE
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:*
microsoft windows_2000 — cpe:2.3:o:microsoft:windows_2000:*:sp4:*:fr:*:*:*:*
microsoft windows_2003_server 64-bit cpe:2.3:o:microsoft:windows_2003_server:64-bit:*:*:*:*:*:*:*
microsoft windows_2003_server r2 cpe:2.3:o:microsoft:windows_2003_server:r2:*:*:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:sp6:terminal_server:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:server:*:*:*:*:*
microsoft windows_nt 4.0 cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:workstation:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:*:*:64-bit:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:*:gold:*:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:*:sp1:64-bit:*:*:*:*:*
microsoft windows_xp — cpe:2.3:o:microsoft:windows_xp:*:sp1:tablet_pc:*:*:*:*:*

References for CVE-2005-1935

cvelogic Threat Intelligence