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Vulnerability details: VCID-eran-kpag-kqeh
Vulnerability ID VCID-eran-kpag-kqeh
Aliases CVE-2021-43299
Summary Stack overflow in PJSUA API when calling pjsua_player_create. An attacker-controlled 'filename' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.
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 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00221 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00264 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2021-43299
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-43299
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2021-43299
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-43299
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37706
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43299
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43300
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43301
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43302
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43303
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43804
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43845
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46837
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21722
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21723
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23608
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24763
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24764
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24786
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24792
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24793
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26498
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26499
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26651
https://github.com/pjsip/pjproject/security/advisories/GHSA-qcvw-h34v-c7r9
1014998 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1014998
cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
CVE-2021-43299 https://nvd.nist.gov/vuln/detail/CVE-2021-43299
USN-6422-1 https://usn.ubuntu.com/6422-1/
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-43299
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-43299
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
Exploit Prediction Scoring System (EPSS)
Percentile 0.44707
EPSS Score 0.00221
Published At Sept. 16, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:38:09.173732+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/6422-1/ 37.0.0