SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2013-5054

Microsoft Office 2013 and 2013 RT allows remote attackers to discover authentication tokens via a crafted response to a file-open request for an Office file on a web site, as exploited in the wild in 2013, aka "Token Hijacking Vulnerability."

MEDIUM 4.3EPSS 11.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 11.7%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

Microsoft Office 2013 and 2013 RT allows remote attackers to discover authentication tokens via a crafted response to a file-open request for an Office file on a web site, as exploited in the wild in 2013, aka "Token Hijacking Vulnerability."

CVSS 2.0
4.3 MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
EPSS
11.69% probability · 96th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-200
Affected
microsoft/office · microsoft/office 2013 rt
Source
secure@microsoft.com
EPSS trend
0%8%15%25 October 2026: 11.69%4 November 2026: 11.69%25 October 20264 November 2026

EPSS moved from 11.7% on 25 October 2026 to 11.7% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.