The (1) Cisco Unified Communications Manager Express; (2) SIP Gateway Signaling Support Over Transport Layer Security (TLS) Transport; (3) Secure Signaling and Media Encryption; (4) Blocks Extensible Exchange Protocol (BEEP); (5) Network Admission Control HTTP Authentication Proxy; (6) Per-user URL Redirect for EAPoUDP, Dot1x, and MAC Authentication Bypass; (7) Distributed Director with HTTP Redirects; and (8) TCP DNS features in Cisco IOS 12.0 through 12.4 do not properly handle IP sockets, which allows remote attackers to cause a denial of service (outage or resource consumption) via a series of crafted TCP packets
Published Mar 27, 2009
7.1
HIGHCVSS 2.0
EPSS 1.76%
Description
The (1) Cisco Unified Communications Manager Express; (2) SIP Gateway Signaling Support Over Transport Layer Security (TLS) Transport; (3) Secure Signaling and Media Encryption; (4) Blocks Extensible Exchange Protocol (BEEP); (5) Network Admission Control HTTP Authentication Proxy; (6) Per-user URL Redirect for EAPoUDP, Dot1x, and MAC Authentication Bypass; (7) Distributed Director with HTTP Redirects; and (8) TCP DNS features in Cisco IOS 12.0 through 12.4 do not properly handle IP sockets, which allows remote attackers to cause a denial of service (outage or resource consumption) via a series of crafted TCP packets.
Affected products
No data.
- 12.0
- 12.0da
- 12.0db
- 12.0dc
- 12.0s
- 12.0sc
- 12.0sl
- 12.0sp
- 12.0st
- 12.0sx
- 12.0sy
- 12.0sz
- 12.0t
- 12.0w
- 12.0wc
- 12.0wt
- 12.0wx
- 12.0xa
- 12.0xb
- 12.0xc
- 12.0xd
- 12.0xe
- 12.0xg
- 12.0xh
- 12.0xi
- 12.0xj
- 12.0xk
- 12.0xl
- 12.0xm
- 12.0xn
- 12.0xq
- 12.0xr
- 12.0xs
- 12.0xt
- 12.0xv
- 12.1
- 12.1aa
- 12.1ax
- 12.1ay
- 12.1az
- 12.1cx
- 12.1da
- 12.1db
- 12.1dc
- 12.1e
- 12.1ea
- 12.1eb
- 12.1ec
- 12.1eo
- 12.1eu
- 12.1ev
- 12.1ew
- 12.1ex
- 12.1ey
- 12.1ez
- 12.1ga
- 12.1gb
- 12.1t
- 12.1xa
- 12.1xb
- 12.1xc
- 12.1xd
- 12.1xe
- 12.1xf
- 12.1xg
- 12.1xh
- 12.1xi
- 12.1xj
- 12.1xl
- 12.1xm
- 12.1xp
- 12.1xq
- 12.1xr
- 12.1xs
- 12.1xt
- 12.1xu
- 12.1xv
- 12.1xw
- 12.1xx
- 12.1xy
- 12.1xz
- 12.1ya
- 12.1yb
- 12.1yc
- 12.1yd
- 12.1ye
- 12.1yf
- 12.1yh
- 12.1yi
- 12.1yj
- 12.2
- 12.2b
- 12.2bc
- 12.2bw
- 12.2bx
- 12.2by
- 12.2bz
- 12.2cx
- 12.2cy
- 12.2cz
- 12.2da
- 12.2dd
- 12.2dx
- 12.2ew
- 12.2ewa
- 12.2ex
- 12.2ey
- 12.2ez
- 12.2fx
- 12.2fy
- 12.2fz
- 12.2ira
- 12.2irb
- 12.2ixa
- 12.2ixb
- 12.2ixc
- 12.2ixd
- 12.2ixe
- 12.2ixf
- 12.2ixg
- 12.2ja
- 12.2jk
- 12.2mb
- 12.2mc
- 12.2s
- 12.2sb
- 12.2sbc
- 12.2sca
- 12.2scb
- 12.2se
- 12.2sea
- 12.2seb
- 12.2sec
- 12.2sed
- 12.2see
- 12.2sef
- 12.2seg
- 12.2sg
- 12.2sga
- 12.2sm
- 12.2so
- 12.2sq
- 12.2sra
- 12.2srb
- 12.2src
- 12.2srd
- 12.2ste
- 12.2su
- 12.2sv
- 12.2sva
- 12.2svc
- 12.2svd
- 12.2sve
- 12.2sw
- 12.2sx
- 12.2sxa
- 12.2sxb
- 12.2sxd
- 12.2sxe
- 12.2sxf
- 12.2sxh
- 12.2sxi
- 12.2sy
- 12.2sz
- 12.2t
- 12.2tpc
- 12.2xa
- 12.2xb
- 12.2xc
- 12.2xd
- 12.2xe
- 12.2xf
- 12.2xg
- 12.2xh
- 12.2xi
- 12.2xj
- 12.2xk
- 12.2xl
- 12.2xm
- 12.2xn
- 12.2xna
- 12.2xnb
- 12.2xo
- 12.2xq
- 12.2xr
- 12.2xs
- 12.2xt
- 12.2xu
- 12.2xv
- 12.2xw
- 12.2ya
- 12.2yb
- 12.2yc
- 12.2yd
- 12.2ye
- 12.2yf
- 12.2yg
- 12.2yh
- 12.2yj
- 12.2yk
- 12.2yl
- 12.2ym
- 12.2yn
- 12.2yo
- 12.2yp
- 12.2yq
- 12.2yr
- 12.2yt
- 12.2yu
- 12.2yv
- 12.2yw
- 12.2yx
- 12.2yy
- 12.2yz
- 12.2za
- 12.2zb
- 12.2zc
- 12.2zd
- 12.2ze
- 12.2zf
- 12.2zg
- 12.2zh
- 12.2zj
- 12.2zl
- 12.2zp
- 12.2zu
- 12.2zx
- 12.2zy
- 12.2zya
- 12.3
- 12.3b
- 12.3bc
- 12.3bw
- 12.3ja
- 12.3jea
- 12.3jeb
- 12.3jec
- 12.3jk
- 12.3jl
- 12.3jx
- 12.3t
- 12.3tpc
- 12.3va
- 12.3xa
- 12.3xb
- 12.3xc
- 12.3xd
- 12.3xe
- 12.3xf
- 12.3xg
- 12.3xi
- 12.3xj
- 12.3xk
- 12.3xl
- 12.3xq
- 12.3xr
- 12.3xs
- 12.3xu
- 12.3xw
- 12.3xx
- 12.3xy
- 12.3xz
- 12.3ya
- 12.3yd
- 12.3yf
- 12.3yg
- 12.3yh
- 12.3yi
- 12.3yj
- 12.3yk
- 12.3ym
- 12.3yq
- 12.3ys
- 12.3yt
- 12.3yu
- 12.3yx
- 12.3yz
- 12.4
- 12.4ja
- 12.4jda
- 12.4jk
- 12.4jl
- 12.4jma
- 12.4jmb
- 12.4jx
- 12.4md
- 12.4mr
- 12.4sw
- 12.4t
- 12.4xa
- 12.4xb
- 12.4xc
- 12.4xd
- 12.4xe
- 12.4xf
- 12.4xg
- 12.4xj
- 12.4xk
- 12.4xl
- 12.4xm
- 12.4xn
- 12.4xp
- 12.4xq
- 12.4xr
- 12.4xt
- 12.4xv
- 12.4xw
- 12.4xy
- 12.4xz
- 12.4ya
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.76% (0.01762) | 77.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.76% (0.01762) | 75.04th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.12% (0.00118) | 28.14th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.25% (0.02254) | 89.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.09% (0.02090) | 87.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
No CWE recorded.
References (7)
- http://secunia.com/advisories/34438 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://securitytracker.com/id?1021897 vdb-entryx_refsource_SECTRACK
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtml x_refsource_CONFIRMVendor Advisory
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a904c6.shtml vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securityfocus.com/bid/34242 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2009/0851 vdb-entryx_refsource_VUPENVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49418 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/34438 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://securitytracker.com/id?1021897 | vdb-entryx_refsource_SECTRACK | |
| http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtml | x_refsource_CONFIRMVendor Advisory | |
| http://www.cisco.com/en/US/products/products_security_advisory09186a0080a904c6.shtml | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securityfocus.com/bid/34242 | vdb-entryx_refsource_BID | |
| http://www.vupen.com/english/advisories/2009/0851 | vdb-entryx_refsource_VUPENVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/49418 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.