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CVE-2024-23170

17
FAUCET Score

CVE-2024-23170 is a timing side-channel vulnerability affecting RSA private operations in Mbed TLS versions 2.x before 2.28.7 and 3.x before 3.5.2. A local attacker could exploit this flaw by sending numerous messages for decryption, potentially recovering the plaintext. Rated Medium severity (CVSS 5.5), it requires local access and low attack complexity, with a high impact on confidentiality. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0.0, < 2.28.7CPE matchmatch criteria
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
>= 3.0.0, < 3.5.2CPE matchmatch criteria
cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
23.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 80th percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

microsoftpatch availablevia msrc
Product: 17178-16823Fixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: 19809-17086Fixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: 17238-17086Fixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: cbl2 hvloader 1.0.1-6 on CBL Mariner 2.0Fixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: cbl2 hvloader 1.0.1-5 on CBL Mariner 2.0Fixed in: 1.0.1-6

Vendor Advisories (2)

microsoft2024-Nov/CVE-2024-23170

CVE-2024-23170

Nov 12, 2024
microsoft2024-Jan/CVE-2024-23170Moderate

An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2. There was a timing side channel in RSA private operations.

Jan 9, 2024

References

lists.fedoraproject.org / archives/list/[email protected]/message/GP5UU7Z6LJNBLBT4SC5WWS2HDNMTFZH5
lists.fedoraproject.org / archives/list/[email protected]/message/IIBPEYSVRK4IFLBSYJAWKH33YBNH5HR2
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/GP5UU7Z6LJNBLBT4SC5WWS2HDNMTFZH5
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/IIBPEYSVRK4IFLBSYJAWKH33YBNH5HR2
mbed-tls.readthedocs.io / en/latest/security-advisories/mbedtls-security-advisory-2024-01-1
Vendor Advisory