CVE-2025-55315 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	9.9 CRITICAL	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
microsoft	CNA	9.9 CRITICAL				CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L/E:U/RL:O/RC:C

Base Score

CVSS 3.x

EPSS Score

Percentile: 58%

Affected Products (NVD)

Vendor	Product	Version
microsoft	asp.net_core	2.3.0 ≤ 𝑥 < 2.3.6
microsoft	asp.net_core	8.0.0 ≤ 𝑥 < 8.0.21
microsoft	asp.net_core	9.0.0 ≤ 𝑥 < 9.0.10
microsoft	visual_studio_2022	17.10.0 ≤ 𝑥 < 17.10.20
microsoft	visual_studio_2022	17.12.10 ≤ 𝑥 < 17.12.13
microsoft	visual_studio_2022	17.14.0 ≤ 𝑥 < 17.14.17

𝑥

= Vulnerable software versions

Ubuntu Releases

Ubuntu Product

Codename

dotnet6

bionic	dne
focal	dne
jammy	deferred
noble	dne
plucky	dne
questing	dne
trusty	dne
xenial	dne

dotnet7

bionic	dne
focal	dne
jammy	ignored
noble	dne
plucky	dne
questing	dne
trusty	dne
xenial	dne

dotnet8

bionic	dne
focal	dne
jammy	Fixed 8.0.121-8.0.21-0ubuntu1~22.04.1 released
noble	Fixed 8.0.121-8.0.21-0ubuntu1~24.04.1 released
plucky	Fixed 8.0.121-8.0.21-0ubuntu1~25.04.1 released
questing	Fixed 8.0.121-8.0.21-0ubuntu1~25.10.1 released
trusty	dne
xenial	dne

dotnet9

bionic	dne
focal	dne
jammy	dne
noble	dne
plucky	Fixed 9.0.111-9.0.10-0ubuntu1~25.04.1 released
questing	Fixed 9.0.111-9.0.10-0ubuntu1~25.10.1 released
trusty	dne
xenial	dne

dotnet10

bionic	dne
focal	dne
jammy	dne
noble	needs-triage
plucky	ignored
questing	Fixed 10.0.100-10.0.0~rc2-0ubuntu1~25.10.2 released
trusty	dne
xenial	dne

Common Weakness Enumeration

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55315

https://andrewlock.net/understanding-the-worst-dotnet-vulnerability-request-smuggling-and-cve-2025-55315/

https://gist.github.com/N3mes1s/d0897c13ca199e739ecc2b562f466040