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01 Record

CVE-2015-6999

The OCSP client in Apple iOS before 9.1 does not check for certificate expiry, which allows remote attackers to spoof a valid certificate by leveraging access to a revoked certificate.

UnratedPUBLISHEDCNA: apple
CNA base scoreUnratedNo CNA CVSS vector
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02 Description

The OCSP client in Apple iOS before 9.1 does not check for certificate expiry, which allows remote attackers to spoof a valid certificate by leveraging access to a revoked certificate.

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 68.2% of scored records. A rank, not a probability.
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

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
2015-10-23 10:00Z11 YR AGO
Last updated
2024-08-06 07:36Z2 YR AGO
Reserved
2015-09-16
Assigning CNA
apple
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.1
Document digest
b4580b6385401d876cf2954cbae98bae5e9b35e10f8dc2c69051b294f5ef8abe

05 Affected products

VendorProductVersionsPlatforms
appleiphone_osNot specified—

06 References