The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range.
Conclusion & alert: CVE-2012-5513 is rated Low Risk (39.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.41%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.06% | 0.41% | +0.34% |
| 2 | 2023-03-07 | 1.55% | 0.06% | -1.48% |
| 3 | 2022-02-04 | — | 1.55% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.9 | 2.0 | MEDIUM |
|
3.4 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2012-5513 not yet assigned priority: Debian including 1 source packages (xen), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2012-5513 |
gentoo
|
high | CVE-2012-5513: 1 GLSA(s) (201309-24), 3 atom(s) (app-emulation/xen, app-emulation/xen-pvgrub, app-emulation/xen-tools); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-5513 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2012-5513 |
ubuntu
|
medium | CVE-2012-5513 medium priority: Ubuntu including 4 source packages (xen, xen-3.1, xen-3.2, xen-3.3), 32 status rows across 8 suites (hardy, lucid, oneiric, precise, quantal, raring, saucy, upstream): DNE 20, released 5, needs-triage 4, ignored 3. | https://ubuntu.com/security/CVE-2012-5513 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| xen | xen | <= 4.2.0 | cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* |
| xen | xen | 3.0.2 | cpe:2.3:o:xen:xen:3.0.2:*:*:*:*:*:*:* |
| xen | xen | 3.0.3 | cpe:2.3:o:xen:xen:3.0.3:*:*:*:*:*:*:* |
| xen | xen | 3.0.4 | cpe:2.3:o:xen:xen:3.0.4:*:*:*:*:*:*:* |
| xen | xen | 3.1.3 | cpe:2.3:o:xen:xen:3.1.3:*:*:*:*:*:*:* |
| xen | xen | 3.1.4 | cpe:2.3:o:xen:xen:3.1.4:*:*:*:*:*:*:* |
| xen | xen | 3.2.0 | cpe:2.3:o:xen:xen:3.2.0:*:*:*:*:*:*:* |
| xen | xen | 3.2.1 | cpe:2.3:o:xen:xen:3.2.1:*:*:*:*:*:*:* |
| xen | xen | 3.2.2 | cpe:2.3:o:xen:xen:3.2.2:*:*:*:*:*:*:* |
| xen | xen | 3.2.3 | cpe:2.3:o:xen:xen:3.2.3:*:*:*:*:*:*:* |
| xen | xen | 3.3.0 | cpe:2.3:o:xen:xen:3.3.0:*:*:*:*:*:*:* |
| xen | xen | 3.3.1 | cpe:2.3:o:xen:xen:3.3.1:*:*:*:*:*:*:* |
| xen | xen | 3.3.2 | cpe:2.3:o:xen:xen:3.3.2:*:*:*:*:*:*:* |
| xen | xen | 3.4.0 | cpe:2.3:o:xen:xen:3.4.0:*:*:*:*:*:*:* |
| xen | xen | 3.4.1 | cpe:2.3:o:xen:xen:3.4.1:*:*:*:*:*:*:* |
| xen | xen | 3.4.2 | cpe:2.3:o:xen:xen:3.4.2:*:*:*:*:*:*:* |
| xen | xen | 3.4.3 | cpe:2.3:o:xen:xen:3.4.3:*:*:*:*:*:*:* |
| xen | xen | 3.4.4 | cpe:2.3:o:xen:xen:3.4.4:*:*:*:*:*:*:* |
| xen | xen | 4.0.0 | cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:* |
| xen | xen | 4.0.1 | cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:* |
| xen | xen | 4.0.2 | cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:* |
| xen | xen | 4.0.3 | cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:* |
| xen | xen | 4.0.4 | cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:* |
| xen | xen | 4.1.0 | cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:* |
| xen | xen | 4.1.1 | cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:* |
| xen | xen | 4.1.2 | cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:* |
| xen | xen | 4.1.3 | cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:* |