CVE-2012-3950 - CVE House
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Status published High CVE-2012-3950

The Intrusion Prevention System (IPS) feature in Cisco IOS 12.3...

Vulnerability Description

The Intrusion Prevention System (IPS) feature in Cisco IOS 12.3 through 12.4 and 15.0 through 15.2, in certain configurations of enabled categories and missing signatures, allows remote attackers to cause a denial of service (device reload) via DNS packets, aka Bug ID CSCtw55976.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

ios
Vulnerable Versions:
12.3, 12.3\(1a\), 12.3\(2\)ja, 12.3\(2\)ja5, 12.3\(2\)jk, 12.3\(2\)jk1, 12.3\(2\)t3, 12.3\(2\)t8, 12.3\(2\)xa4, 12.3\(2\)xa5, 12.3\(2\)xc1, 12.3\(2\)xc2, 12.3\(2\)xc3, 12.3\(2\)xc4, 12.3\(2\)xe3, 12.3\(2\)xe4, 12.3\(3e\), 12.3\(3h\), 12.3\(3i\), 12.3\(4\)eo1, 12.3\(4\)ja, 12.3\(4\)ja1, 12.3\(4\)t, 12.3\(4\)t1, 12.3\(4\)t2, 12.3\(4\)t3, 12.3\(4\)t4, 12.3\(4\)t8, 12.3\(4\)tpc11a, 12.3\(4\)xd, 12.3\(4\)xd1, 12.3\(4\)xd2, 12.3\(4\)xe4, 12.3\(4\)xg1, 12.3\(4\)xg2, 12.3\(4\)xg4, 12.3\(4\)xg5, 12.3\(4\)xh, 12.3\(4\)xk, 12.3\(4\)xk1, 12.3\(4\)xk3, 12.3\(4\)xk4, 12.3\(4\)xq, 12.3\(4\)xq1, 12.3\(5\), 12.3\(5\)b1, 12.3\(5a\), 12.3\(5a\)b, 12.3\(5a\)b2, 12.3\(5a\)b5, 12.3\(5b\), 12.3\(5c\), 12.3\(5e\), 12.3\(5f\), 12.3\(6\), 12.3\(6a\), 12.3\(6d\), 12.3\(6e\), 12.3\(6f\), 12.3\(7\)ja, 12.3\(7\)ja1, 12.3\(7\)jx, 12.3\(7\)t, 12.3\(7\)t4, 12.3\(7\)t8, 12.3\(7\)t9, 12.3\(7\)t10, 12.3\(7\)t12, 12.3\(7\)xi3, 12.3\(7\)xi4, 12.3\(7\)xi7, 12.3\(7\)xr3, 12.3\(7\)xr4, 12.3\(7\)xr6, 12.3\(7.7\), 12.3\(8\)ja, 12.3\(8\)ja1, 12.3\(8\)t4, 12.3\(8\)t7, 12.3\(8\)t8, 12.3\(8\)t9, 12.3\(8\)t11, 12.3\(8\)xu2, 12.3\(8\)xy4, 12.3\(8\)xy5, 12.3\(8\)xy6, 12.3\(8\)ya1, 12.3\(8\)yd, 12.3\(8\)yf, 12.3\(8\)yg, 12.3\(8\)yg1, 12.3\(8\)yg2, 12.3\(8\)yg3, 12.3\(8\)yh, 12.3\(8\)yi, 12.3\(8\)yi1, 12.3\(8\)yi3, 12.3\(9\), 12.3\(9a\)bc, 12.3\(9a\)bc2, 12.3\(9a\)bc6, 12.3\(9a\)bc7, 12.3\(9d\), 12.3\(9e\), 12.3\(10\), 12.3\(10c\), 12.3\(10d\), 12.3\(10e\), 12.3\(11\), 12.3\(11\)t, 12.3\(11\)t4, 12.3\(11\)t5, 12.3\(11\)t6, 12.3\(11\)t8, 12.3\(11\)t9, 12.3\(11\)xl, 12.3\(11\)xl3, 12.3\(11\)yf, 12.3\(11\)yf2, 12.3\(11\)yf3, 12.3\(11\)yf4, 12.3\(11\)yj, 12.3\(11\)yk, 12.3\(11\)yk1, 12.3\(11\)yk2, 12.3\(11\)yl, 12.3\(11\)yn, 12.3\(11\)yr, 12.3\(11\)ys, 12.3\(11\)ys1, 12.3\(11\)yw, 12.3\(12\), 12.3\(12b\), 12.3\(12e\), 12.3\(13\), 12.3\(13a\), 12.3\(13a\)bc, 12.3\(13a\)bc1, 12.3\(13b\), 12.3\(14\)t, 12.3\(14\)t2, 12.3\(14\)t4, 12.3\(14\)t5, 12.3\(14\)ym4, 12.3\(14\)yq, 12.3\(14\)yq1, 12.3\(14\)yq3, 12.3\(14\)yq4, 12.3\(14\)yt, 12.3\(14\)yt1, 12.3\(14\)yu, 12.3\(14\)yu1, 12.3\(15\), 12.3\(15b\), 12.3\(16\), 12.3b, 12.3bc, 12.3bw, 12.3j, 12.3ja, 12.3jea, 12.3jeb, 12.3jec, 12.3jed, 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, 12.3xh, 12.3xi, 12.3xj, 12.3xk, 12.3xl, 12.3xm, 12.3xn, 12.3xq, 12.3xr, 12.3xs, 12.3xt, 12.3xu, 12.3xv, 12.3xw, 12.3xx, 12.3xy, 12.3xz, 12.3ya, 12.3yb, 12.3yc, 12.3yd, 12.3ye, 12.3yf, 12.3yg, 12.3yh, 12.3yi, 12.3yj, 12.3yk, 12.3yl, 12.3ym, 12.3yn, 12.3yq, 12.3yr, 12.3ys, 12.3yt, 12.3yu, 12.3yw, 12.3yx, 12.3yz, 12.3za, 12.4, 12.4\(1\), 12.4\(1b\), 12.4\(1c\), 12.4\(2\)mr, 12.4\(2\)mr1, 12.4\(2\)t, 12.4\(2\)t1, 12.4\(2\)t2, 12.4\(2\)t3, 12.4\(2\)t4, 12.4\(2\)xa, 12.4\(2\)xb, 12.4\(2\)xb2, 12.4\(3\), 12.4\(3\)t2, 12.4\(3a\), 12.4\(3b\), 12.4\(3d\), 12.4\(4\)mr, 12.4\(4\)t, 12.4\(4\)t2, 12.4\(5\), 12.4\(5b\), 12.4\(6\)t, 12.4\(6\)t1, 12.4\(7\), 12.4\(7a\), 12.4\(8\), 12.4\(9\)t, 12.4\(11\)md, 12.4\(15\)md, 12.4\(22\)md, 12.4\(22\)mda, 12.4\(23\), 12.4\(24\)md, 12.4\(24\)md1, 12.4\(24\)md2, 12.4\(24\)md3, 12.4\(24\)md4, 12.4\(24\)mda, 12.4\(24\)t1, 12.4gc, 12.4ja, 12.4jda, 12.4jdc, 12.4jdd, 12.4jk, 12.4jl, 12.4jma, 12.4jmb, 12.4jx, 12.4md, 12.4mda, 12.4mdb, 12.4mr, 12.4mra, 12.4xp, 12.4xq, 12.4xr, 12.4xt, 12.4xv, 12.4xw, 12.4xy, 12.4xz, 12.4ya, 12.4yb, 12.4yd, 12.4ye, 12.4yg, 15.0, 15.0\(1\)se, 15.1, 15.2

Timeline

Official Publish: September 27th, 2012
Last Modified: August 6th, 2024
Added to House: July 19th, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.