synced 13 MIN AGO
01 Record

CVE-2015-6403

The TFTP implementation on Cisco Small Business SPA30x, SPA50x, SPA51x phones 7.5.7 improperly validates firmware-image file integrity, which allows local users to load a Trojan horse image by

UnratedPUBLISHEDCNA: cisco
CNA base scoreUnratedNo CNA CVSS vector

02 Description

The TFTP implementation on Cisco Small Business SPA30x, SPA50x, SPA51x phones 7.5.7 improperly validates firmware-image file integrity, which allows local users to load a Trojan horse image by

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
0.38% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 31.7% 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
2015-12-15 02:00Z10 YR AGO
Last updated
2024-08-06 07:22Z2 YR AGO
Reserved
2015-08-17
Assigning CNA
cisco
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.1
Document digest
0b54e953918727fb3ddf065bf4abb36956d3aef8da0451f9fab53f31344a9a08

05 Affected products

VendorProductVersionsPlatforms
ciscospa300_firmwareNot specified—
ciscospa500_firmwareNot specified—
ciscospa_301Not specified—
ciscospa_303Not specified—
ciscospa_500dsNot specified—
ciscospa_500sNot specified—
ciscospa_501gNot specified—
ciscospa_502gNot specified—
ciscospa_504gNot specified—
ciscospa_508gNot specified—
ciscospa_509gNot specified—
ciscospa_512gNot specified—
ciscospa_514gNot specified—
ciscospa_525g2Not specified—

06 References