CVE-2025-55315 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	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
CISA-ADP	ADP	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 18%

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

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

dotnet7

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

dotnet8

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

dotnet9

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

dotnet10

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