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Vulnerability Instance

Lookup for vulnerabilities affecting packages.

Vulnerability_idVCID-bfrw-1zcy-xyc2
SummaryA security vulnerability has been detected in fraillt bitsery up to 5.2.4. Affected is the function loadFromSharedState in the library include/bitsery/ext/std_smart_ptr.h. Such manipulation leads to improper validation of specified type of input. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 5.2.5 is able to address this issue. The name of the patch is 66d16516e24893bebc1c8af52bf2fe9ad0735061. Upgrading the affected component is advised.
Aliases
0
alias CVE-2026-9521
Fixed_packages
Affected_packages
References
0
reference_url https://api.first.org/data/v1/epss?cve=CVE-2026-9521
reference_id
reference_type
scores
0
value 0.00079
scoring_system epss
scoring_elements 0.23519
published_at 2026-06-11T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2026-9521
1
reference_url https://vuldb.com/vuln/365541
reference_id 365541
reference_type
scores
0
value 7.5
scoring_system cvssv2
scoring_elements AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
1
value 7.3
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2
value 7.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3
value 6.3
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-26T12:19:20Z/
url https://vuldb.com/vuln/365541
2
reference_url https://github.com/fraillt/bitsery/commit/66d16516e24893bebc1c8af52bf2fe9ad0735061
reference_id 66d16516e24893bebc1c8af52bf2fe9ad0735061
reference_type
scores
0
value 7.5
scoring_system cvssv2
scoring_elements AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
1
value 7.3
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2
value 7.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3
value 6.3
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-26T12:19:20Z/
url https://github.com/fraillt/bitsery/commit/66d16516e24893bebc1c8af52bf2fe9ad0735061
3
reference_url https://gist.github.com/TrebledJ/750abc64a826f19dd2d6774724629b71
reference_id 750abc64a826f19dd2d6774724629b71
reference_type
scores
0
value 7.5
scoring_system cvssv2
scoring_elements AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
1
value 7.3
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2
value 7.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3
value 6.3
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-26T12:19:20Z/
url https://gist.github.com/TrebledJ/750abc64a826f19dd2d6774724629b71
4
reference_url https://vuldb.com/submit/814457
reference_id 814457
reference_type
scores
0
value 7.5
scoring_system cvssv2
scoring_elements AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
1
value 7.3
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2
value 7.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3
value 6.3
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-26T12:19:20Z/
url https://vuldb.com/submit/814457
5
reference_url https://github.com/fraillt/bitsery/
reference_id bitsery
reference_type
scores
0
value 7.5
scoring_system cvssv2
scoring_elements AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
1
value 7.3
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2
value 7.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3
value 6.3
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-26T12:19:20Z/
url https://github.com/fraillt/bitsery/
6
reference_url https://github.com/fraillt/bitsery/blob/master/CHANGELOG.md#525-2025-10-09
reference_id CHANGELOG.md#525-2025-10-09
reference_type
scores
0
value 7.5
scoring_system cvssv2
scoring_elements AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
1
value 7.3
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2
value 7.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3
value 6.3
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-26T12:19:20Z/
url https://github.com/fraillt/bitsery/blob/master/CHANGELOG.md#525-2025-10-09
7
reference_url https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:fraillt:bitsery:*:*:*:*:*:*:*:*
reference_id cpe:2.3:a:fraillt:bitsery:*:*:*:*:*:*:*:*
reference_type
scores
url https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:fraillt:bitsery:*:*:*:*:*:*:*:*
8
reference_url https://vuldb.com/vuln/365541/cti
reference_id cti
reference_type
scores
0
value 7.5
scoring_system cvssv2
scoring_elements AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
1
value 7.3
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2
value 7.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3
value 6.3
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-26T12:19:20Z/
url https://vuldb.com/vuln/365541/cti
9
reference_url https://github.com/fraillt/bitsery/releases/tag/v5.2.5
reference_id v5.2.5
reference_type
scores
0
value 7.5
scoring_system cvssv2
scoring_elements AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
1
value 7.3
scoring_system cvssv3
scoring_elements CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2
value 7.3
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3
value 6.3
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-05-26T12:19:20Z/
url https://github.com/fraillt/bitsery/releases/tag/v5.2.5
Weaknesses
0
cwe_id 20
name Improper Input Validation
description The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
1
cwe_id 1287
name Improper Validation of Specified Type of Input
description The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.
Exploits
Severity_range_score6.3 - 7.5
Exploitabilitynull
Weighted_severitynull
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/vulnerabilities/VCID-bfrw-1zcy-xyc2