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01 Record

CVE-2016-5201

A leak of privateClass in the extensions API in Google Chrome prior to 54.0.2840.100 for Linux, and 54.0.2840.99 for Windows, and 54.0.2840.98 for Mac allowed a remote attacker to access privileged

UnratedPUBLISHEDCNA: Chrome
CNA base scoreUnratedNo CNA CVSS vector

02 Description

A leak of privateClass in the extensions API in Google Chrome prior to 54.0.2840.100 for Linux, and 54.0.2840.99 for Windows, and 54.0.2840.98 for Mac allowed a remote attacker to access privileged

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.20% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 67.9% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2017-01-19 05:43Z9 YR AGO
Last updated
2024-08-06 00:53Z2 YR AGO
Reserved
2016-05-31
Assigning CNA
Chrome
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
Data version
5.1
Document digest
060eedcd635d496d8f30e968f8d93a8a3e2dc4886c3e2bf25d0a5c29f5f23402

05 Affected products

VendorProductVersionsPlatforms
n/aGoogle Chrome prior to 54.0.2840.100 for Linux, and 54.0.2840.99 for Windows, and 54.0.2840.98 for MacGoogle Chrome prior to 54.0.2840.100 for Linux, and 54.0.2840.99 for Windows, and 54.0.2840.98 for Mac—

06 References

07 Fixed in

Ubuntu 14.04 LTS

  • chromium-browser
    Fixed in 58.0.3029.81-0ubuntu0.14.04.1172

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • chromium-browser
    Fixed in 55.0.2883.87-0ubuntu0.16.04.1263

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.