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CVE-2023-27554

29
FAUCET Score

CVE-2023-27554 is a critical XML External Entity (XXE) injection vulnerability affecting IBM WebSphere Application Server versions 8.5 and 9.0. With a CVSS score of 9.1, this vulnerability allows a remote, unauthenticated attacker to expose sensitive information or cause a denial of service by consuming memory resources. While there is no known active exploitation, public exploit code, or KEV listing, the vulnerability has garnered significant community discussion, indicating potential interest.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.5.0.0, < 8.5.5.24CPE matchmatch criteria
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
>= 9.0.0.0, < 9.0.5.16CPE matchmatch criteria
cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.1
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 39th percentile among its peer group of 36,897 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

exchange.xforce.ibmcloud.com / vulnerabilities/249185
VDB EntryVendor Advisory
ibm.com / support/pages/node/6989451
PatchVendor Advisory