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Vulnerability details: VCID-8dzf-qjps-6qed
Vulnerability ID VCID-8dzf-qjps-6qed
Aliases CVE-2021-45423
Summary A Buffer Overflow vulnerabilityexists in Pev 0.81 via the pe_exports function from exports.c.. The array offsets_to_Names is dynamically allocated on the stack using exp->NumberOfFunctions as its size. However, the loop uses exp->NumberOfNames to iterate over it and set its components value. Therefore, the loop code assumes that exp->NumberOfFunctions is greater than ordinal at each iteration. This can lead to arbitrary code execution.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
epss 0.00719 https://api.first.org/data/v1/epss?cve=CVE-2021-45423
epss 0.00719 https://api.first.org/data/v1/epss?cve=CVE-2021-45423
epss 0.00719 https://api.first.org/data/v1/epss?cve=CVE-2021-45423
cvssv3.1 9.8 https://github.com/merces/libpe/issues/35
ssvc Track* https://github.com/merces/libpe/issues/35
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-45423
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45423
1034725 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1034725
35 https://github.com/merces/libpe/issues/35
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/merces/libpe/issues/35
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2025-03-03T20:37:08Z/ Found at https://github.com/merces/libpe/issues/35
Exploit Prediction Scoring System (EPSS)
Percentile 0.72921
EPSS Score 0.00719
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T17:32:15.171938+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2021/45xxx/CVE-2021-45423.json 38.6.0