Multiple buffer overflows in FlightGear 2.6 and earlier and SimGear 2.6 and earlier allow user-assisted remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a (1) long string in a rotor tag of an aircraft xml model to the Rotor::getValueforFGSet function in src/FDM/YASim/Rotor.cpp or (2) a crafted UDP packet to the SGSocketUDP::read function in simgear/simgear/simgear/io/sg_socket_udp.cxx.
Conclusion & alert: CVE-2012-2091 is rated High Risk (67.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 7.56%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
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 | 2026-01-23 | 9.04% | 7.56% | -1.48% |
| 2 | 2025-03-30 | 23.79% | 9.04% | -14.75% |
| 3 | 2025-03-29 | — | 23.79% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2012-2091 unimportant priority: Debian including 2 source packages (flightgear, simgear), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. | https://security-tracker.debian.org/tracker/CVE-2012-2091 |
gentoo
|
normal | CVE-2012-2091: 1 GLSA(s) (201603-12), 2 atom(s) (games-simulation/flightgear, games-simulation/simgear); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-2091 |
ubuntu
|
medium | CVE-2012-2091 medium priority: Ubuntu including 2 source packages (flightgear, simgear), 32 status rows across 16 suites (hardy, lucid, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 14, ignored 12, DNE 2, needs-triage 2, released 2. | https://ubuntu.com/security/CVE-2012-2091 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| flightgear | flightgear | <= 2.6.0 | cpe:2.3:a:flightgear:flightgear:*:*:*:*:*:*:*:* |
| flightgear | flightgear | 1.9.1 | cpe:2.3:a:flightgear:flightgear:1.9.1:*:*:*:*:*:*:* |
| flightgear | flightgear | 2.0.0 | cpe:2.3:a:flightgear:flightgear:2.0.0:*:*:*:*:*:*:* |
| simgear | simgear | <= 2.6.0 | cpe:2.3:a:simgear:simgear:*:*:*:*:*:*:*:* |
| simgear | simgear | 1.9.1 | cpe:2.3:a:simgear:simgear:1.9.1:*:*:*:*:*:*:* |
| simgear | simgear | 2.0.0 | cpe:2.3:a:simgear:simgear:2.0.0:*:*:*:*:*:*:* |