CVE-2011-1895 — CRLF injection vulnerability in Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 allows remote attackers to inject arbitrary HTTP headers, and conduct HTTP response splitting attacks and cross-site scripting (XSS) attacks, via unspecified vectors, aka "ExcelTable Response Splitting XSS Vulnerability."

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MEDIUM

CRLF injection vulnerability in Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 allows remote attackers to inject arbitrary HTTP headers, and conduct HTTP response splitting attacks and cross-site scripting (XSS) attacks, via unspecified vectors, aka "ExcelTable Response Splitting XSS Vulnerability."

Published Oct 12, 2011

4.3

MEDIUM

CVSS 2.0

EPSS 11.14%

Description

CRLF injection vulnerability in Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 allows remote attackers to inject arbitrary HTTP headers, and conduct HTTP response splitting attacks and cross-site scripting (XSS) attacks, via unspecified vectors, aka "ExcelTable Response Splitting XSS Vulnerability."

Affected products

Remediation

No remediation recorded yet.

Metrics

11.14% 0.11137

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.11137

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (12 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	11.14% (0.11137)	95.82th	v5 (v2026.06.15)
Jun 15, 2026	11.14% (0.11137)	95.36th	v5 (v2026.06.15)
Mar 30, 2025	21.12% (0.21120)	95.17th	v4 (v2025.03.14)
Mar 29, 2025	43.35% (0.43354)	96.28th	v4 (v2025.03.14)
Mar 17, 2025	21.12% (0.21120)	95.18th	v4 (v2025.03.14)
Dec 12, 2024	0.95% (0.00954)	83.90th	v3 (v2023.03.01)
Jul 4, 2024	0.95% (0.00954)	83.32th	v3 (v2023.03.01)
Sep 6, 2023	0.95% (0.00954)	81.32th	v3 (v2023.03.01)
Jul 10, 2023	1.04% (0.01040)	81.92th	v3 (v2023.03.01)
Mar 7, 2023	1.00% (0.00996)	81.25th	v3 (v2023.03.01)
Mar 6, 2023	29.55% (0.29551)	97.42th	v2 (v2022.01.01)
Feb 4, 2022	29.55% (0.29551)	96.23th	v2 (v2022.01.01)

Weaknesses (1)

CWE-94

Code Injection

References (4)

http://osvdb.org/76235
vdb-entryx_refsource_OSVDB
http://www.securityfocus.com/bid/49979
vdb-entryx_refsource_BID
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-079
vendor-advisoryx_refsource_MS
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13064
vdb-entrysignaturex_refsource_OVAL

Link	Providers	Tags
http://osvdb.org/76235		vdb-entryx_refsource_OSVDB
http://www.securityfocus.com/bid/49979		vdb-entryx_refsource_BID
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-079		vendor-advisoryx_refsource_MS
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13064		vdb-entrysignaturex_refsource_OVAL

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Oct 12, 2011

Updated Aug 6, 2024

Reserved May 4, 2011

Link CVE-2011-1895

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2011-1895

Red Hat

Severity n/a

Public date n/a

Links CVE-2011-1895