Vulnerability Database

328,411

Total vulnerabilities in the database

CVE-2008-1152

The data-link switching (DLSw) component in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (device restart or memory consumption) via crafted (1) UDP port 2067 or (2) IP protocol 91 packets.

  • Published: Mar 27, 2008
  • Updated: Nov 9, 2025
  • CVE: CVE-2008-1152
  • Severity: High
  • Exploit:

CVSS v2:

  • Severity: High
  • Score: 7.8
  • AV:N/AC:L/Au:N/C:N/I:N/A:C

CWEs:

Software From Fixed in
cisco / cisco_ios 12.1-xz 12.1-xz.x
cisco / cisco_ios 12.1-xc 12.1-xc.x
cisco / cisco_ios 12.0-st 12.0-st.x
cisco / cisco_ios 12.2-cx 12.2-cx.x
cisco / cisco_ios 12.0-xc 12.0-xc.x
cisco / cisco_ios 12.2-seb 12.2-seb.x
cisco / cisco_ios 12.2-xv 12.2-xv.x
cisco / cisco_ios 12.1-aa 12.1-aa.x
cisco / cisco_ios 12.3-xe 12.3-xe.x
cisco / cisco_ios 12.1-ya 12.1-ya.x
cisco / cisco_ios 12.3-yu 12.3-yu.x
cisco / cisco_ios 12.2-by 12.2-by.x
cisco / cisco_ios 12.2-ya 12.2-ya.x
cisco / cisco_ios 12.2-dd 12.2-dd.x
cisco / cisco_ios 12.2-xg 12.2-xg.x
cisco / cisco_ios 12.3-jl 12.3-jl.x
cisco / cisco_ios 12.1-xf 12.1-xf.x
cisco / cisco_ios 12.0-xw 12.0-xw.x
cisco / cisco_ios 12.2-sec 12.2-sec.x
cisco / cisco_ios 12.2-ixb 12.2-ixb.x
cisco / cisco_ios 12.1-yj 12.1-yj.x
cisco / cisco_ios 12.1-dc 12.1-dc.x
cisco / cisco_ios 12.1-ea 12.1-ea.x
cisco / cisco_ios 12.1-xd 12.1-xd.x
cisco / cisco_ios 12.2-yo 12.2-yo.x
cisco / cisco_ios 12.2-xl 12.2-xl.x
cisco / cisco_ios 12.0-xa 12.0-xa.x
cisco / cisco_ios 12.1-xt 12.1-xt.x
cisco / cisco_ios 12.2-xu 12.2-xu.x
cisco / cisco_ios 12.2-yy 12.2-yy.x
cisco / cisco_ios 12.2-sbc 12.2-sbc.x
cisco / cisco_ios 12.2-fz 12.2-fz.x
cisco / cisco_ios 12.3-xh 12.3-xh.x
cisco / cisco_ios 12.2-ex 12.2-ex.x
cisco / cisco_ios 12.0-xm 12.0-xm.x
cisco / cisco_ios 12.2-zj 12.2-zj.x
cisco / cisco_ios 12.2-ez 12.2-ez.x
cisco / cisco_ios 12.0-sc 12.0-sc.x
cisco / cisco_ios 12.3-bw 12.3-bw.x
cisco / cisco_ios 12.1-xb 12.1-xb.x
cisco / cisco_ios 12.2-xj 12.2-xj.x
cisco / cisco_ios 12.3-xf 12.3-xf.x
cisco / cisco_ios 12.2-xq 12.2-xq.x
cisco / cisco_ios 12.4-ja 12.4-ja.x
cisco / cisco_ios 12.2-s 12.2-s.x
cisco / cisco_ios 12.3-xy 12.3-xy.x
cisco / cisco_ios 12.0-xv 12.0-xv.x
cisco / cisco_ios 12.0-wc 12.0-wc.x
cisco / cisco_ios 12.0-xq 12.0-xq.x
cisco / cisco_ios 12.3-xa 12.3-xa.x
cisco / cisco_ios 12.4-jx 12.4-jx.x
cisco / cisco_ios 12.3-ya 12.3-ya.x
cisco / cisco_ios 12.3-eu 12.3-eu.x
cisco / cisco_ios 12.3-jeb 12.3-jeb.x
cisco / cisco_ios 12.3-b 12.3-b.x
cisco / cisco_ios 12.4-xe 12.4-xe.x
cisco / cisco_ios 12.1-ga 12.1-ga.x
cisco / cisco_ios 12.0-sx 12.0-sx.x
cisco / cisco_ios 12.1-ec 12.1-ec.x
cisco / cisco_ios 12.1-xe 12.1-xe.x
cisco / cisco_ios 12.4-xm 12.4-xm.x
cisco / cisco_ios 12.1-ey 12.1-ey.x
cisco / cisco_ios 12.3-xi 12.3-xi.x
cisco / cisco_ios 12.4-xb 12.4-xb.x
cisco / cisco_ios 12.2-mc 12.2-mc.x
cisco / cisco_ios 12.2-yn 12.2-yn.x
cisco / ios 12.2yf 12.2yf.x
cisco / cisco_ios 12.4-sw 12.4-sw.x
cisco / cisco_ios 12.2-mb 12.2-mb.x
cisco / cisco_ios 12.2-xm 12.2-xm.x
cisco / cisco_ios 12.1-yh 12.1-yh.x
cisco / cisco_ios 12.2-ixa 12.2-ixa.x
cisco / cisco_ios 12.1-da 12.1-da.x
cisco / ios 12.2yd 12.2yd.x
cisco / cisco_ios 12.2-zh 12.2-zh.x
cisco / cisco_ios 12.2-yk 12.2-yk.x
cisco / cisco_ios 12.2-xa 12.2-xa.x
cisco / cisco_ios 12.0-xk 12.0-xk.x
cisco / cisco_ios 12.1-ez 12.1-ez.x
cisco / cisco_ios 12.1-xx 12.1-xx.x
cisco / cisco_ios 12.3-xd 12.3-xd.x
cisco / cisco_ios 12.1-xj 12.1-xj.x
cisco / cisco_ios 12.4-mr 12.4-mr.x
cisco / cisco_ios 12.2-xd 12.2-xd.x
cisco / cisco_ios 12.2-su 12.2-su.x
cisco / cisco_ios 12.0-s 12.0-s.x
cisco / cisco_ios 12.3-xk 12.3-xk.x
cisco / cisco_ios 12.2-sy 12.2-sy.x
cisco / cisco_ios 12.2-ewa 12.2-ewa.x
cisco / cisco_ios 12.3-yz 12.3-yz.x
cisco / cisco_ios 12.0-db 12.0-db.x
cisco / cisco_ios 12.2-sxa 12.2-sxa.x
cisco / cisco_ios 12.4-xl 12.4-xl.x
cisco / cisco_ios 12.0-sy 12.0-sy.x
cisco / cisco_ios 12.4-t 12.4-t.x
cisco / cisco_ios 12.2-yq 12.2-yq.x
cisco / cisco_ios 12.2-ey 12.2-ey.x
cisco / cisco_ios 12.4-jma 12.4-jma.x
cisco / cisco_ios 12.2-sra 12.2-sra.x
cisco / cisco_ios 12.3-yj 12.3-yj.x
cisco / cisco_ios 12.4-xg 12.4-xg.x
cisco / cisco_ios 12.2-xt 12.2-xt.x
cisco / cisco_ios 12.1-c 12.1-c.x
cisco / cisco_ios 12.0-sp 12.0-sp.x
cisco / cisco_ios 12.0-xd 12.0-xd.x
cisco / cisco_ios 12.1-xp 12.1-xp.x
cisco / cisco_ios 12.1-yb 12.1-yb.x
cisco / cisco_ios 12.3-xu 12.3-xu.x
cisco / cisco_ios 12.2-yj 12.2-yj.x
cisco / cisco_ios 12.2-sz 12.2-sz.x
cisco / cisco_ios 12.0-wt 12.0-wt.x
cisco / cisco_ios 12.1-cx 12.1-cx.x
cisco / cisco_ios 12.2-ixd 12.2-ixd.x
cisco / cisco_ios 12.2-ixc 12.2-ixc.x
cisco / cisco_ios 12.1-ye 12.1-ye.x
cisco / cisco_ios 12.3-yq 12.3-yq.x
cisco / cisco_ios 12.1-d 12.1-d.x
cisco / cisco_ios 12.3-xq 12.3-xq.x
cisco / cisco_ios 12.0-xf 12.0-xf.x
cisco / cisco_ios 12.2-dx 12.2-dx.x
cisco / cisco_ios 12.2-sxd 12.2-sxd.x
cisco / cisco_ios 12.4-jmb 12.4-jmb.x
cisco / cisco_ios 12.3-jea 12.3-jea.x
cisco / cisco_ios 12.3 12.3.x
cisco / cisco_ios 12.4-xy 12.4-xy.x
cisco / cisco_ios 12.3-xc 12.3-xc.x
cisco / cisco_ios 12.2-se 12.2-se.x
cisco / ios 12.2yg 12.2yg.x
cisco / cisco_ios 12.2-sed 12.2-sed.x
cisco / cisco_ios 12.4-xn 12.4-xn.x
cisco / cisco_ios 12.3-xj 12.3-xj.x
cisco / cisco_ios 12.0-xg 12.0-xg.x
cisco / cisco_ios 12.0-xl 12.0-xl.x
cisco / cisco_ios 12.2-zb 12.2-zb.x
cisco / cisco_ios 12.1-yd 12.1-yd.x
cisco / cisco_ios 12.2-zg 12.2-zg.x
cisco / cisco_ios 12.2-da 12.2-da.x
cisco / cisco_ios 12.2-zy 12.2-zy.x
cisco / cisco_ios 12.3-ys 12.3-ys.x
cisco / cisco_ios 12.0-t 12.0-t.x
cisco / cisco_ios 12.3-t 12.3-t.x
cisco / cisco_ios 12.2-xb 12.2-xb.x
cisco / cisco_ios 12.2-yx 12.2-yx.x
cisco / cisco_ios 12.2-ze 12.2-ze.x
cisco / cisco_ios 12.2-srb 12.2-srb.x
cisco / cisco_ios 12.2-sm 12.2-sm.x
cisco / cisco_ios 12.3-xs 12.3-xs.x
cisco / cisco_ios 12.1-az 12.1-az.x
cisco / cisco_ios 12.2-bc 12.2-bc.x
cisco / cisco_ios 12.2-zl 12.2-zl.x
cisco / cisco_ios 12.0-xi 12.0-xi.x
cisco / cisco_ios 12.2-sg 12.2-sg.x
cisco / cisco_ios 12.1-eb 12.1-eb.x
cisco / cisco_ios 12.1-xv 12.1-xv.x
cisco / cisco_ios 12.2-sea 12.2-sea.x
cisco / cisco_ios 12.4-jk 12.4-jk.x
cisco / cisco_ios 12.1-xm 12.1-xm.x
cisco / cisco_ios 12.1-xs 12.1-xs.x
cisco / cisco_ios 12.4 12.4.x
cisco / cisco_ios 12.4-xw 12.4-xw.x
cisco / cisco_ios 12.1-xq 12.1-xq.x
cisco / cisco_ios 12.2-ja 12.2-ja.x
cisco / cisco_ios 12.1-xh 12.1-xh.x
cisco / cisco_ios 12.2-eu 12.2-eu.x
cisco / cisco_ios 12.0-xs 12.0-xs.x
cisco / cisco_ios 12.2-cy 12.2-cy.x
cisco / cisco_ios 12.2-st 12.2-st.x
cisco / cisco_ios 12.3-va 12.3-va.x
cisco / cisco_ios 12.1-b 12.1-b.x
cisco / cisco_ios 12.1-db 12.1-db.x
cisco / cisco_ios 12.0-da 12.0-da.x
cisco / cisco_ios 12.2-yt 12.2-yt.x
cisco / cisco_ios 12.2-t 12.2-t.x
cisco / cisco_ios 12.3-jx 12.3-jx.x
cisco / cisco_ios 12.0-xr 12.0-xr.x
cisco / cisco_ios 12.4-jmc 12.4-jmc.x
cisco / cisco_ios 12.3-yh 12.3-yh.x
cisco / cisco_ios 12.2-zp 12.2-zp.x
cisco / cisco_ios 12.1-xr 12.1-xr.x
cisco / cisco_ios 12.2-xf 12.2-xf.x
cisco / cisco_ios 12.1-gb 12.1-gb.x
cisco / cisco_ios 12.3-yx 12.3-yx.x
cisco / cisco_ios 12.0-dc 12.0-dc.x
cisco / cisco_ios 12.3-yk 12.3-yk.x
cisco / cisco_ios 12.2-xw 12.2-xw.x
cisco / cisco_ios 12.2-xi 12.2-xi.x
cisco / cisco_ios 12.2-yp 12.2-yp.x
cisco / cisco_ios 12.0-xn 12.0-xn.x
cisco / cisco_ios 12.2-sw 12.2-sw.x
cisco / cisco_ios 12.2-xr 12.2-xr.x
cisco / cisco_ios 12.1-eu 12.1-eu.x
cisco / cisco_ios 12.4-md 12.4-md.x
cisco / cisco_ios 12.2-uz 12.2-uz.x
cisco / cisco_ios 12.1-xa 12.1-xa.x
cisco / cisco_ios 12.0-xb 12.0-xb.x
cisco / cisco_ios 12.2-ym 12.2-ym.x
cisco / cisco_ios 12.2-b 12.2-b.x
cisco / cisco_ios 12.1-eo 12.1-eo.x
cisco / cisco_ios 12.2-yv 12.2-yv.x
cisco / cisco_ios 12.2-sb 12.2-sb.x
cisco / cisco_ios 12.4-xj 12.4-xj.x
cisco / cisco_ios 12.3-ym 12.3-ym.x
cisco / cisco_ios 12.4-xc 12.4-xc.x
cisco / cisco_ios 12.2-xk 12.2-xk.x
cisco / cisco_ios 12.1-xk 12.1-xk.x
cisco / cisco_ios 12.3-tpc 12.3-tpc.x
cisco / cisco_ios 12.2-see 12.2-see.x
cisco / cisco_ios 12.1-ew 12.1-ew.x
cisco / cisco_ios 12.4-xk 12.4-xk.x
cisco / cisco_ios 12.0-xj 12.0-xj.x
cisco / cisco_ios 12.2-yb 12.2-yb.x
cisco / cisco_ios 12.1-xl 12.1-xl.x
cisco / cisco_ios 12.3-ja 12.3-ja.x
cisco / cisco_ios 12.2-tpc 12.2-tpc.x
cisco / cisco_ios 12.4-xa 12.4-xa.x
cisco / cisco_ios 12.1-xg 12.1-xg.x
cisco / cisco_ios 12.2-yc 12.2-yc.x
cisco / cisco_ios 12.0-sz 12.0-sz.x
cisco / cisco_ios 12.3-jec 12.3-jec.x
cisco / cisco_ios 12.2-sv 12.2-sv.x
cisco / cisco_ios 12.4-xt 12.4-xt.x
cisco / cisco_ios 12.3-yi 12.3-yi.x
cisco / cisco_ios 12.3-bc 12.3-bc.x
cisco / cisco_ios 12.2-yu 12.2-yu.x
cisco / cisco_ios 12.0-xh 12.0-xh.x
cisco / cisco_ios 12.2-ys 12.2-ys.x
cisco / cisco_ios 12.2-xe 12.2-xe.x
cisco / cisco_ios 12.3-xb 12.3-xb.x
cisco / cisco_ios 12.4-xd 12.4-xd.x
cisco / cisco_ios 12.2-zc 12.2-zc.x
cisco / cisco_ios 12.2-yl 12.2-yl.x
cisco / cisco_ios 12.1-yi 12.1-yi.x
cisco / cisco_ios 12.4-xv 12.4-xv.x
cisco / cisco_ios 12.2-bw 12.2-bw.x
cisco / cisco_ios 12.1-e 12.1-e.x
cisco / cisco_ios 12.2-sxb 12.2-sxb.x
cisco / cisco_ios 12.2-bz 12.2-bz.x
cisco / cisco_ios 12.2-yr 12.2-yr.x
cisco / cisco_ios 12.2-so 12.2-so.x
cisco / cisco_ios 12.3-yf 12.3-yf.x
cisco / ios 12.0 12.0.x
cisco / cisco_ios 12.3-yg 12.3-yg.x
cisco / cisco_ios 12.2-xn 12.2-xn.x
cisco / cisco_ios 12.2-xh 12.2-xh.x
cisco / cisco_ios 12.2-sga 12.2-sga.x
cisco / cisco_ios 12.2-zd 12.2-zd.x
cisco / cisco_ios 12.2-seg 12.2-seg.x
cisco / cisco_ios 12.2-xs 12.2-xs.x
cisco / cisco_ios 12.3-xg 12.3-xg.x
cisco / cisco_ios 12.2-ew 12.2-ew.x
cisco / cisco_ios 12.3-yt 12.3-yt.x
cisco / cisco_ios 12.4-xf 12.4-xf.x
cisco / cisco_ios 12.1-xw 12.1-xw.x
cisco / cisco_ios 12.1-xy 12.1-xy.x
cisco / cisco_ios 12.0-sl 12.0-sl.x
cisco / cisco_ios 12.0-xe 12.0-xe.x
cisco / cisco_ios 12.3-yd 12.3-yd.x
cisco / cisco_ios 12.0-xo 12.0-xo.x
cisco / cisco_ios 12.1-ex 12.1-ex.x
cisco / cisco_ios 12.3-xw 12.3-xw.x
cisco / cisco_ios 12.2-ye 12.2-ye.x
cisco / cisco_ios 12.1-ax 12.1-ax.x
cisco / cisco_ios 12.3-xr 12.3-xr.x
cisco / cisco_ios 12.1-yf 12.1-yf.x
cisco / cisco_ios 12.1-xi 12.1-xi.x
cisco / cisco_ios 12.2-xc 12.2-xc.x
cisco / cisco_ios 12.2-sef 12.2-sef.x
cisco / ios 12.2yh 12.2yh.x
cisco / cisco_ios 12.2-za 12.2-za.x
cisco / cisco_ios 12.1-yc 12.1-yc.x
cisco / cisco_ios 12.2-zf 12.2-zf.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.