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CVE-2016-8871

17
FAUCET Score

CVE-2016-8871 describes a timing side-channel vulnerability in Botan versions 1.11.29 through 1.11.32, specifically affecting RSA decryption with certain padding options. This medium-severity flaw (CVSS 6.2) could allow an attacker, given sufficient queries, to recover plaintext due to observable timing differences during decryption. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.11.29CPE matchmatch criteria
cpe:2.3:a:botan_project:botan:1.11.29:*:*:*:*:*:*:*
1.11.30CPE matchmatch criteria
cpe:2.3:a:botan_project:botan:1.11.30:*:*:*:*:*:*:*
1.11.31CPE matchmatch criteria
cpe:2.3:a:botan_project:botan:1.11.31:*:*:*:*:*:*:*
1.11.32CPE matchmatch criteria
cpe:2.3:a:botan_project:botan:1.11.32:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.2MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.5
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 62nd percentile among its peer group of 3,050 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

botan.randombit.net / security.html
Vendor Advisory
securityfocus.com / bid/94225
Third Party AdvisoryVDB Entry