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CVE-2018-15904

29
FAUCET Score

CVE-2018-15904 is a critical SQL injection vulnerability affecting specific versions of A10 ACOS Web Application Firewall (WAF) 2.7.1, 2.7.2, 4.1.0, 4.1.1, and 4.1.2. The flaw stems from improper handling of configured rules designed to block SQL injection attacks. With a CVSS score of 9.8 (Critical), this vulnerability allows unauthenticated attackers to remotely execute arbitrary code, leading to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.7.1CPE matchmatch criteria
cpe:2.3:a:a10networks:acos_web_application_firewall:2.7.1:*:*:*:*:*:*:*
2.7.2CPE matchmatch criteria
cpe:2.3:a:a10networks:acos_web_application_firewall:2.7.2:*:*:*:*:*:*:*
2.7.2CPE matchmatch criteria
cpe:2.3:a:a10networks:acos_web_application_firewall:2.7.2:p1:*:*:*:*:*:*
2.7.2CPE matchmatch criteria
cpe:2.3:a:a10networks:acos_web_application_firewall:2.7.2:p10:*:*:*:*:*:*
2.7.2CPE matchmatch criteria
cpe:2.3:a:a10networks:acos_web_application_firewall:2.7.2:p11:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 46th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

a10networks.com / support/security-advisories/waf-sql-injection-attack-sqlia-vulnerability
MitigationVendor Advisory