Unify (former Siemens) OpenStage SIP and OpenScape Desk Phone IP V3 devices before R3.32.0 allow remote attackers to gain super-user privileges by leveraging SSH access and incorrect ownership of (1) ConfigureCoreFile.sh, (2) Traceroute.sh, (3) apps.sh, (4) conversion_java2native.sh, (5) coreCompression.sh, (6) deletePasswd.sh, (7) findHealthSvcFDs.sh, (8) fw_printenv.sh, (9) fw_setenv.sh, (10) hw_wd_kicker.sh, (11) new_rootfs.sh, (12) opera_killSnmpd.sh, (13) opera_startSnmpd.sh, (14) rebootOperaSoftware.sh, (15) removeLogFiles.sh, (16) runOperaServices.sh, (17) setPasswd.sh, (18) startAccTestSvcs.sh, (19) usbNotification.sh, or (20) appWeb in /Opera_Deploy.
Conclusion & alert: CVE-2014-8421 is rated Moderate Risk (54.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.63%). Mandatory action: Review affected assets and schedule 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 | 2025-11-28 | 0.90% | 0.63% | -0.27% |
| 2 | 2025-03-30 | 2.07% | 0.90% | -1.16% |
| 3 | 2025-03-29 | — | 2.07% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
1.6 | 5.9 | [email protected] |
| 8.5 | 2.0 | HIGH |
|
6.8 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| unify | openstage_sip | < r3.32.0 | cpe:2.3:a:unify:openstage_sip:*:*:*:*:*:*:*:* |
| unify | openscape_desk_phone_ip_sip | < r3.32.0 | cpe:2.3:a:unify:openscape_desk_phone_ip_sip:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://networks.unify.com/security/advisories/OBSO-1501-02.pdf | Mitigation Vendor Advisory |
| https://www.modzero.ch/advisories/MZ-14-02-Siemens-Unify-OpenStage.txt | Third Party Advisory |