CVE-2015-6280

highpriority · track · 39EPSS 0.044 · 91 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

4.39% (91st) EPSS

CVSS 9.3 · high

Is it mine?

84 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

The SSHv2 functionality in Cisco IOS 15.2, 15.3, 15.4, and 15.5 and IOS XE 3.6E before 3.6.3E, 3.7E before 3.7.1E, 3.10S before 3.10.6S, 3.11S before 3.11.4S, 3.12S before 3.12.3S, 3.13S before 3.13.3S, and 3.14S before 3.14.1S does not properly implement RSA authentication, which allows remote attackers to obtain login access by leveraging knowledge of a username and the associated public key, aka Bug ID CSCus73013.

cvss

Technical severity, 0–10. One row per scoring source.

9.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.9–9.3

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10

v2.09.3criticalAV:N/AC:M/Au:N/C:C/I:C/A:Csecondary · FSTEC (BDU) RU

v2.07.9highAV:N/AC:M/Au:N/C:C/I:C/A:C/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimaryCWE-287US

affected products (84)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Cisco Systems Inc. Cisco IOS≤ 15.3fstec_bduRU
Cisco Systems Inc. Cisco IOS≤ 15.2fstec_bduRU
Cisco Systems Inc. Cisco IOS≤ 15.4fstec_bduRU
Cisco Systems Inc. Cisco IOS3.10S XE → 3.10.6S XEfstec_bduRU
Cisco Systems Inc. Cisco IOS3.12S XE → 3.12.3S XEfstec_bduRU
Cisco Systems Inc. Cisco IOS3.13S → 3.13.3S XEfstec_bduRU
Cisco Systems Inc. Cisco IOS3.14S XE → 3.14.1S XEfstec_bduRU
Cisco Systems Inc. Cisco IOS3.6E XE → 3.6.3E XEfstec_bduRU
Cisco Systems Inc. Cisco IOS3.7E XE → 3.7.1E XEfstec_bduRU
cisco ios= 15.2(1)synvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.2(1)sy0anvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.2(2)envdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.2(2)e1nvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.2(2)e2nvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.2(2)ea1nvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.2(2a)e1nvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.2(2a)e2nvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.2(3)envdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.2(3)eanvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*

showing 20 of 84

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2015-09-28modified 2026-06-17

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+7709 more

references (9)

External citations — patches, advisories, analysis.

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