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CVE-2023-28526

17
FAUCET Score

CVE-2023-28526 describes a heap buffer overflow vulnerability in the archecker component of IBM Informix Dynamic Server versions 12.10 and 14.10. This flaw, stemming from improper bounds checking, could allow a local authenticated user to trigger a segmentation fault, leading to a denial of service. With a CVSS score of 5.5 (Medium), the attack requires local access and has a low attack complexity, but its impact is limited to availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
12.10CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_server:12.10:-:*:*:-:*:*:*
14.10CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_server:14.10:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_server_on_cloud_pak_for_data:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.2MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.5
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
14.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 63rd 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

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/251204
VDB EntryVendor Advisory
ibm.com / support/pages/node/7070188
Vendor Advisory