Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2004-0551

Cisco CatOS 5.x before 5.5(20) through 8.x before 8.2(2) and 8.3(2)GLX, as used in Catalyst switches, allows remote attackers to cause a denial of service (system crash and reload) by sending invalid packets instead of the final ACK portion of the three-way handshake to the (1) Telnet, (2) HTTP, or (3) SSH services, aka "TCP-ACK DoS attack."

  • Published: Aug 6, 2004
  • Updated: Apr 13, 2023
  • CVE: CVE-2004-0551
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

No CWE or OWASP classifications available.

Software From Fixed in
cisco / catos 5.5(12a) 5.5(12a).x
cisco / catos 7.4(0.2)clr 7.4(0.2)clr.x
cisco / catos 5.5(16) 5.5(16).x
cisco / catos 4.5(12a) 4.5(12a).x
cisco / catos 5.5(13.5) 5.5(13.5).x
cisco / catos 2.1(2) 2.1(2).x
cisco / catos 8.1(3) 8.1(3).x
cisco / catos 6.4(1) 6.4(1).x
cisco / catos 7.6(4) 7.6(4).x
cisco / catos 4.5(11) 4.5(11).x
cisco / catos 6.4(5) 6.4(5).x
cisco / catos 5.5(10a) 5.5(10a).x
cisco / catos 5.4(4) 5.4(4).x
cisco / catos 5.5(4) 5.5(4).x
cisco / catos 5.5(13) 5.5(13).x
cisco / catos 7.4(3) 7.4(3).x
cisco / catos 7.1(2) 7.1(2).x
cisco / catos 6.4(8) 6.4(8).x
cisco / catos 2.1(7) 2.1(7).x
cisco / catos 2.1(6) 2.1(6).x
cisco / catos 6.1(1d) 6.1(1d).x
cisco / catos 4.5(3) 4.5(3).x
cisco / catos 6.3(9) 6.3(9).x
cisco / catos 6.2(3a) 6.2(3a).x
cisco / catos 6.2(2) 6.2(2).x
cisco / catos 2.1(8) 2.1(8).x
cisco / catos 6.3(5) 6.3(5).x
cisco / catos 7.6(3) 7.6(3).x
cisco / catos 3.2(1) 3.2(1).x
cisco / catos 2.4(5) 2.4(5).x
cisco / catos 5.1(2a) 5.1(2a).x
cisco / catos 5.4(1) 5.4(1).x
cisco / catos 6.3(3) 6.3(3).x
cisco / catos 2.1(12) 2.1(12).x
cisco / catos 5.5 5.5.x
cisco / catos 6.3(3a) 6.3(3a).x
cisco / catos 7.2(2) 7.2(2).x
cisco / catos 6.1(2a) 6.1(2a).x
cisco / catos 6.3(5.10) 6.3(5.10).x
cisco / catos 6.1(1) 6.1(1).x
cisco / catos 5.2(2)csx 5.2(2)csx.x
cisco / catos 5.5(1) 5.5(1).x
cisco / catos 6.1(2) 6.1(2).x
cisco / catos 7.4 7.4.x
cisco / catos 4.5(9) 4.5(9).x
cisco / catos 5.2(1)csx 5.2(1)csx.x
cisco / catos 7.1(1a) 7.1(1a).x
cisco / catos 5.1(1a) 5.1(1a).x
cisco / catos 4.5(13) 4.5(13).x
cisco / catos 6.1(1b) 6.1(1b).x
cisco / catos 6.4(4a) 6.4(4a).x
cisco / catos 3.0(7) 3.0(7).x
cisco / catos 2.1(4) 2.1(4).x
cisco / catos 4.2(1) 4.2(1).x
cisco / catos 7.6 7.6.x
cisco / catos 3.2(2) 3.2(2).x
cisco / catos 5.1(2b) 5.1(2b).x
cisco / catos 6.1(1a) 6.1(1a).x
cisco / catos 6.4(6) 6.4(6).x
cisco / catos 7.4(1) 7.4(1).x
cisco / catos 5.5(4b) 5.5(4b).x
cisco / catos 6.2(2a) 6.2(2a).x
cisco / catos 7.3(1) 7.3(1).x
cisco / catos 4.5(10) 4.5(10).x
cisco / catos 6.3(10) 6.3(10).x
cisco / catos 5.3(5)csx 5.3(5)csx.x
cisco / catos 5.5(8a)cv 5.5(8a)cv.x
cisco / catos 7.3 7.3.x
cisco / catos 5.5(6a) 5.5(6a).x
cisco / catos 8.3(1)glx 8.3(1)glx.x
cisco / catos 5.5(12) 5.5(12).x
cisco / catos 5.3(1a)csx 5.3(1a)csx.x
cisco / catos 4.5(6a) 4.5(6a).x
cisco / catos 5.5(19) 5.5(19).x
cisco / catos 8.1 8.1.x
cisco / catos 6.3(8.3) 6.3(8.3).x
cisco / catos 8.1(2) 8.1(2).x
cisco / catos 6.2(1) 6.2(1).x
cisco / catos 6.1(4b) 6.1(4b).x
cisco / catos 5.3(2)csx 5.3(2)csx.x
cisco / catos 5.2(3) 5.2(3).x
cisco / catos 7.5 7.5.x
cisco / catos 5.3(4)csx 5.3(4)csx.x
cisco / catos 5.2(4) 5.2(4).x
cisco / catos 5.5(8a) 5.5(8a).x
cisco / catos 6.1(1e) 6.1(1e).x
cisco / catos 8.2 8.2.x
cisco / catos 8.2(1) 8.2(1).x
cisco / catos 7.3(2) 7.3(2).x
cisco / catos 3.2(1b) 3.2(1b).x
cisco / catos 6.3(7) 6.3(7).x
cisco / catos 3.2(7) 3.2(7).x
cisco / catos 2.1(3) 2.1(3).x
cisco / catos 5.2(3a)csx 5.2(3a)csx.x
cisco / catos 2.1(1) 2.1(1).x
cisco / catos 6.3(1) 6.3(1).x
cisco / catos 5.5(4a) 5.5(4a).x
cisco / catos 7.5(1) 7.5(1).x
cisco / catos 4.5(5) 4.5(5).x
cisco / catos 5.5(18) 5.5(18).x
cisco / catos 5.4(3) 5.4(3).x
cisco / catos 2.1(5) 2.1(5).x
cisco / catos 6.1 6.1.x
cisco / catos 3.1(2a) 3.1(2a).x
cisco / catos 5.1(1) 5.1(1).x
cisco / catos 5.1(1)csx 5.1(1)csx.x
cisco / catos 6.3(3)x 6.3(3)x.x
cisco / catos 5.2(6) 5.2(6).x
cisco / catos 6.3(1a) 6.3(1a).x
cisco / catos 6.2(1a) 6.2(1a).x
cisco / catos 7.2(0.65) 7.2(0.65).x
cisco / catos 6.3(2a) 6.3(2a).x
cisco / catos 4.3(1a) 4.3(1a).x
cisco / catos 2.2(2) 2.2(2).x
cisco / catos 2.1(11) 2.1(11).x
cisco / catos 5.1(1a)csx 5.1(1a)csx.x
cisco / catos 6.3(8) 6.3(8).x
cisco / catos 2.4(2) 2.4(2).x
cisco / catos 2.4(5a) 2.4(5a).x
cisco / catos 5.2(3)csx 5.2(3)csx.x
cisco / catos 4.5(2) 4.5(2).x
cisco / catos 7.6(5) 7.6(5).x
cisco / catos 7.1(1) 7.1(1).x
cisco / catos 3.2(6) 3.2(6).x
cisco / catos 5.5(10) 5.5(10).x
cisco / catos 6.3(2) 6.3(2).x
cisco / catos 6.2(3) 6.2(3).x
cisco / catos 7.4(0.63) 7.4(0.63).x
cisco / catos 4.5(8) 4.5(8).x
cisco / catos 6.3(4) 6.3(4).x
cisco / catos 5.5(13a) 5.5(13a).x
cisco / catos 6.3(4a) 6.3(4a).x
cisco / catos 4.4(1) 4.4(1).x
cisco / catos 5.5(3) 5.5(3).x
cisco / catos 7.6(2) 7.6(2).x
cisco / catos 2.4(3) 2.4(3).x
cisco / catos 6.4(7) 6.4(7).x
cisco / catos 5.5(5) 5.5(5).x
cisco / catos 3.2(3) 3.2(3).x
cisco / catos 8.3glx 8.3glx.x
cisco / catos 5.3(3)csx 5.3(3)csx.x
cisco / catos 5.4 5.4.x
cisco / catos 4.1(1) 4.1(1).x
cisco / catos 4.5(14) 4.5(14).x
cisco / catos 5.4(2a) 5.4(2a).x
cisco / catos 5.3(6)csx 5.3(6)csx.x
cisco / catos 5.4(2) 5.4(2).x
cisco / catos 6.3(6) 6.3(6).x
cisco / catos 5.2(5) 5.2(5).x
cisco / catos 2.4(4) 2.4(4).x
cisco / catos 7.2(1) 7.2(1).x
cisco / catos 5.5(6) 5.5(6).x
cisco / catos 5.5(17) 5.5(17).x
cisco / catos 6.4(2) 6.4(2).x
cisco / catos 5.5(2) 5.5(2).x
cisco / catos 4.1(2) 4.1(2).x
cisco / catos 5.5(15) 5.5(15).x
cisco / catos 3.1(2) 3.1(2).x
cisco / catos 5.5(11a) 5.5(11a).x
cisco / catos 3.2(4) 3.2(4).x
cisco / catos 7.1(2a) 7.1(2a).x
cisco / catos 5.2(7a) 5.2(7a).x
cisco / catos 4.5(13a) 4.5(13a).x
cisco / catos 5.2(7) 5.2(7).x
cisco / catos 5.5(7) 5.5(7).x
cisco / catos 3.1(1) 3.1(1).x
cisco / catos 5.3(6a)csx 5.3(6a)csx.x
cisco / catos 5.2(2) 5.2(2).x
cisco / catos 2.1(10) 2.1(10).x
cisco / catos 3.2(8)gdr 3.2(8)gdr.x
cisco / catos 5.5(16.2) 5.5(16.2).x
cisco / catos 2.2(1) 2.2(1).x
cisco / catos 5.3(5a)csx 5.3(5a)csx.x
cisco / catos 6.3(3)x1 6.3(3)x1.x
cisco / catos 5.4(1)deferred 5.4(1)deferred.x
cisco / catos 6.1(4) 6.1(4).x
cisco / catos 6.1(3a) 6.1(3a).x
cisco / catos 4.5(12) 4.5(12).x
cisco / catos 4.2(2) 4.2(2).x
cisco / catos 7.4(2) 7.4(2).x
cisco / catos 5.5(7a) 5.5(7a).x
cisco / catos 5.5(8) 5.5(8).x
cisco / catos 5.2(1) 5.2(1).x
cisco / catos 6.4(3) 6.4(3).x
cisco / catos 2.1(9) 2.1(9).x
cisco / catos 5.5(9) 5.5(9).x
cisco / catos 3.2(5) 3.2(5).x
cisco / catos 5.4(4a) 5.4(4a).x
cisco / catos 4.5(7) 4.5(7).x
cisco / catos 2.4(1) 2.4(1).x
cisco / catos 5.5(1a) 5.5(1a).x
cisco / catos 5.5(14) 5.5(14).x
cisco / catos 4.5(6) 4.5(6).x
cisco / catos 6.1(1c) 6.1(1c).x
cisco / catos 5.5(11) 5.5(11).x
cisco / catos 4.1(3) 4.1(3).x
cisco / catos 6.1(3) 6.1(3).x
cisco / catos 4.5(4) 4.5(4).x
cisco / catos 7.6(1) 7.6(1).x
cisco / catos 4.5(1) 4.5(1).x
cisco / catos 2.3(1) 2.3(1).x
cisco / catalyst_2980g-a - -
cisco / catalyst_2926 - -
cisco / catos 6.1(2.13) 6.1(2.13).x
cisco / catos 6.2(0.110) 6.2(0.110).x
cisco / catos 6.2(0.111) 6.2(0.111).x
cisco / catalyst_6000_ws-svc-nam-2 2.2(1a) 2.2(1a).x
cisco / catos 5.1 5.1.x
cisco / catalyst_6000_ws-svc-nam-2 3.1(1a) 3.1(1a).x
cisco / catalyst_4500 - -
cisco / catalyst_5000 - -
cisco / catalyst_2901 - -
cisco / catalyst_6000_ws-svc-nam-1 2.2(1a) 2.2(1a).x
cisco / catalyst_4506 - -
cisco / catalyst_6000_ws-x6380-nam 2.1(2) 2.1(2).x
cisco / catos 4.5.10 4.5.10.x
cisco / catalyst_4912g - -
cisco / catos 7.1 7.1.x
cisco / catalyst_2926f - -
cisco / catalyst_2926gl - -
cisco / catalyst_2948 - -
cisco / catalyst_2902 - -
cisco / catalyst_2980g - -
cisco / catalyst_4510r - -
cisco / catalyst_6000_ws-x6380-nam 3.1(1a) 3.1(1a).x
cisco / catos 6.3(0.7)pan 6.3(0.7)pan.x
cisco / catalyst_2948g-l3 - -
cisco / catos 5.2 5.2.x
cisco / catalyst_4503 - -
cisco / catalyst_2926gs - -
cisco / catalyst_2948-ge-tx - -
cisco / catos 4.5(4b) 4.5(4b).x
cisco / catos 5.2(1a) 5.2(1a).x
cisco / catos 5.3(1)csx 5.3(1)csx.x
cisco / catalyst_4000 - -
cisco / catalyst_2926t - -
cisco / catalyst_6000_ws-svc-nam-1 3.1(1a) 3.1(1a).x
cisco / catalyst_4507r - -