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CVE-2023-42129

19
FAUCET Score

CVE-2023-42129 is a directory traversal vulnerability in A10 Thunder ADC and ACOS that allows an authenticated remote attacker to disclose sensitive information. The flaw, stemming from improper path validation in the ShowTechDownloadView class, enables attackers to read arbitrary files in the context of the service account. Rated Medium severity (CVSS 6.5), it requires authentication but has low attack complexity and high confidentiality impact. Currently, there is no known public exploit code, active exploitation, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.1.0, < 5.2.1CPE matchmatch criteria
cpe:2.3:o:a10networks:advanced_core_operating_system:*:*:*:*:*:*:*:*
>= 6.0.0, < 6.0.2CPE matchmatch criteria
cpe:2.3:o:a10networks:advanced_core_operating_system:*:*:*:*:*:*:*:*
4.1.4CPE matchmatch criteria
cpe:2.3:o:a10networks:advanced_core_operating_system:4.1.4:-:*:*:*:*:*:*
4.1.4CPE matchmatch criteria
cpe:2.3:o:a10networks:advanced_core_operating_system:4.1.4:gr1:*:*:*:*:*:*
4.1.4CPE matchmatch criteria
cpe:2.3:o:a10networks:advanced_core_operating_system:4.1.4:gr1-p1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.39%
Probability of exploitation in next 30 days
EPSS Percentile
82.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0239 is in the 93rd percentile among its peer group of 21,958 CVEs.

Social Chatter

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

Remediation

Remediation records are not available for this CVE.

References

support.a10networks.com / support/security_advisory/a10-acos-file-access-vulnerability
ExploitVendor Advisory
zerodayinitiative.com / advisories/ZDI-23-1495
Third Party Advisory