CVE-2009-2863

Published: Sep 28, 2009Modified: Apr 23, 2026

7.1

Vector

AV:N/AC:M/Au:N/C:C/I:N/A:N

Exploitability: 8.6 / Impact: 6.9

Source: NVD

Description

Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227.

Affected (136)

Products: Cisco: Ios

Cisco

1 product

Ios

Configuration A

136 vulnerable

Vulnerable Software	Affected Versions
Cisco Ios	Version 12.0xk
Cisco Ios	Version 12.0xr
Cisco Ios	Version 12.1
Cisco Ios	Version 12.1e
Cisco Ios	Version 12.1ex
Cisco Ios	Version 12.1t
Cisco Ios	Version 12.1xc
Cisco Ios	Version 12.1xh
Cisco Ios	Version 12.1xi
Cisco Ios	Version 12.1xj
Cisco Ios	Version 12.1xm
Cisco Ios	Version 12.1xp
Cisco Ios	Version 12.1xr
Cisco Ios	Version 12.1yb
Cisco Ios	Version 12.1yd
Cisco Ios	Version 12.1yf
Cisco Ios	Version 12.1yi
Cisco Ios	Version 12.2
Cisco Ios	Version 12.2b
Cisco Ios	Version 12.2bw
Cisco Ios	Version 12.2cz
Cisco Ios	Version 12.2dd
Cisco Ios	Version 12.2ex
Cisco Ios	Version 12.2ey
Cisco Ios	Version 12.2fz
Cisco Ios	Version 12.2ira
Cisco Ios	Version 12.2irb
Cisco Ios	Version 12.2irc
Cisco Ios	Version 12.2ixa
Cisco Ios	Version 12.2ixb
Cisco Ios	Version 12.2ixc
Cisco Ios	Version 12.2ixd
Cisco Ios	Version 12.2ixe
Cisco Ios	Version 12.2ixf
Cisco Ios	Version 12.2ixg
Cisco Ios	Version 12.2s
Cisco Ios	Version 12.2sbc
Cisco Ios	Version 12.2se
Cisco Ios	Version 12.2sec
Cisco Ios	Version 12.2sed
Cisco Ios	Version 12.2see
Cisco Ios	Version 12.2sef
Cisco Ios	Version 12.2seg
Cisco Ios	Version 12.2sg
Cisco Ios	Version 12.2sga
Cisco Ios	Version 12.2sq
Cisco Ios	Version 12.2sra
Cisco Ios	Version 12.2srb
Cisco Ios	Version 12.2src
Cisco Ios	Version 12.2su
Cisco Ios	Version 12.2sx
Cisco Ios	Version 12.2sxa
Cisco Ios	Version 12.2sxb
Cisco Ios	Version 12.2sxd
Cisco Ios	Version 12.2sxe
Cisco Ios	Version 12.2sxf
Cisco Ios	Version 12.2sxh
Cisco Ios	Version 12.2sxi
Cisco Ios	Version 12.2t
Cisco Ios	Version 12.2tpc
Cisco Ios	Version 12.2xa
Cisco Ios	Version 12.2xb
Cisco Ios	Version 12.2xd
Cisco Ios	Version 12.2xe
Cisco Ios	Version 12.2xg
Cisco Ios	Version 12.2xj
Cisco Ios	Version 12.2xk
Cisco Ios	Version 12.2xl
Cisco Ios	Version 12.2xm
Cisco Ios	Version 12.2xo
Cisco Ios	Version 12.2xq
Cisco Ios	Version 12.2xt
Cisco Ios	Version 12.2xv
Cisco Ios	Version 12.2xw
Cisco Ios	Version 12.2ya
Cisco Ios	Version 12.2yb
Cisco Ios	Version 12.2yc
Cisco Ios	Version 12.2ye
Cisco Ios	Version 12.2yf
Cisco Ios	Version 12.2yh
Cisco Ios	Version 12.2yl
Cisco Ios	Version 12.2ym
Cisco Ios	Version 12.2yn
Cisco Ios	Version 12.2yq
Cisco Ios	Version 12.2yu
Cisco Ios	Version 12.2yv
Cisco Ios	Version 12.2yx
Cisco Ios	Version 12.2yz
Cisco Ios	Version 12.2zd
Cisco Ios	Version 12.2zh
Cisco Ios	Version 12.2zj
Cisco Ios	Version 12.2zl
Cisco Ios	Version 12.2zy
Cisco Ios	Version 12.2zya
Cisco Ios	Version 12.3
Cisco Ios	Version 12.3b
Cisco Ios	Version 12.3jk
Cisco Ios	Version 12.3t
Cisco Ios	Version 12.3tpc
Cisco Ios	Version 12.3va
Cisco Ios	Version 12.3xa
Cisco Ios	Version 12.3xc
Cisco Ios	Version 12.3xd
Cisco Ios	Version 12.3xe
Cisco Ios	Version 12.3xf
Cisco Ios	Version 12.3xg
Cisco Ios	Version 12.3xk
Cisco Ios	Version 12.3xl
Cisco Ios	Version 12.3xq
Cisco Ios	Version 12.3xr
Cisco Ios	Version 12.3xx
Cisco Ios	Version 12.3ya
Cisco Ios	Version 12.3yd
Cisco Ios	Version 12.3yg
Cisco Ios	Version 12.3yh
Cisco Ios	Version 12.3yi
Cisco Ios	Version 12.3yk
Cisco Ios	Version 12.3ym
Cisco Ios	Version 12.3yt
Cisco Ios	Version 12.3yz
Cisco Ios	Version 12.4
Cisco Ios	Version 12.4mr
Cisco Ios	Version 12.4t
Cisco Ios	Version 12.4xa
Cisco Ios	Version 12.4xd
Cisco Ios	Version 12.4xe
Cisco Ios	Version 12.4xf
Cisco Ios	Version 12.4xj
Cisco Ios	Version 12.4xk
Cisco Ios	Version 12.4xt
Cisco Ios	Version 12.4xv
Cisco Ios	Version 12.4xw
Cisco Ios	Version 12.4xy
Cisco Ios	Version 12.4xz
Cisco Ios	Version 12.4ya
Cisco Ios	Version 12.4yb