The TFTP server in Cisco IOS 12.2(44)SQ1, 12.2(33)XN1, 12.4(25e)JAM1, 12.4(25e)JAO5m, 12.4(23)JY, 15.0(2)ED1, 15.0(2)EY3, 15.1(3)SVF4a, and 15.2(2)JB1 and IOS XE 2.5.x, 2.6.x, 3.1.xS, 3.2.xS, 3.3.xS, 3.4.xS, and 3.5.xS before 3.6.0S; 3.1.xSG, 3.2.xSG, and 3.3.xSG before 3.4.0SG; 3.2.xSE before 3.3.0SE; 3.2.xXO before 3.3.0XO; 3.2.xSQ; 3.3.xSQ; and 3.4.xSQ allows remote attackers to cause a denial of service (device hang or reload) via multiple requests that trigger improper memory management, aka Bug ID CSCts66733
Published Jul 24, 2015
7.1
HIGHCVSS 2.0
EPSS 2.33%
Description
The TFTP server in Cisco IOS 12.2(44)SQ1, 12.2(33)XN1, 12.4(25e)JAM1, 12.4(25e)JAO5m, 12.4(23)JY, 15.0(2)ED1, 15.0(2)EY3, 15.1(3)SVF4a, and 15.2(2)JB1 and IOS XE 2.5.x, 2.6.x, 3.1.xS, 3.2.xS, 3.3.xS, 3.4.xS, and 3.5.xS before 3.6.0S; 3.1.xSG, 3.2.xSG, and 3.3.xSG before 3.4.0SG; 3.2.xSE before 3.3.0SE; 3.2.xXO before 3.3.0XO; 3.2.xSQ; 3.3.xSQ; and 3.4.xSQ allows remote attackers to cause a denial of service (device hang or reload) via multiple requests that trigger improper memory management, aka Bug ID CSCts66733.
Affected products
No data.
- 12.2\(33\)xn1
- 12.2\(44\)sq1
- 12.4\(23\)jy
- 12.4\(25e\)jam1
- 12.4\(25e\)jao5m
- 15.0\(2\)ed1
- 15.0\(2\)ey3
- 15.1\(3\)svf4a
- 15.2\(2\)jb1
- 2.5.0
- 2.5.1
- 2.5.2
- 2.6.0
- 2.6.1
- 2.6.2
- 3.1s.0
- 3.1s.1
- 3.1s.2
- 3.1s.3
- 3.1s.4
- 3.1s.5
- 3.1s.6
- 3.1sg.0
- 3.1sg.1
- 3.2s.0
- 3.2s.1
- 3.2s.2
- 3.2s.3
- 3.2se.0
- 3.2se.1
- 3.2se.2
- 3.2se.3
- 3.2sg.0
- 3.2sg.1
- 3.2sg.2
- 3.2sg.3
- 3.2sg.4
- 3.2sg.5
- 3.2sg.6
- 3.2sg.7
- 3.2sg.8
- 3.2sg.9
- 3.2xo.0
- 3.2xo.1
- 3.3sg.0
- 3.3sg.1
- 3.3sg.2
- 3.3sq.0
- 3.3sq.1
- 3.4s.0
- 3.4s.1
- 3.4s.2
- 3.4s.3
- 3.4s.4
- 3.4s.5
- 3.4s.6
- 3.4sq.0
- 3.4sq.1
- 3.5s.0
- 3.5s.1
- 3.5s.2
- 3.5s_base
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.33% (0.02333) | 82.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.33% (0.02333) | 81.27th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.02% (0.01016) | 75.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.56% (0.00563) | 78.47th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.56% (0.00563) | 77.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.56% (0.00563) | 74.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (3)
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150722-tftp vendor-advisoryx_refsource_CISCOVendor Advisory
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150722-tftp/cvrf/cisco-sa-20150722-tftp_cvrf.xml x_refsource_CONFIRMVendor Advisory
- http://www.securitytracker.com/id/1033023 vdb-entryx_refsource_SECTRACK
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150722-tftp | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150722-tftp/cvrf/cisco-sa-20150722-tftp_cvrf.xml | x_refsource_CONFIRMVendor Advisory | |
| http://www.securitytracker.com/id/1033023 | vdb-entryx_refsource_SECTRACK |
Change history (0)
No recorded changes yet.