CVE Explorer
CVE-2026-57916
proCertum SmartSign opens Certificate Practice Statement (CPS) URI without schema validation. An attacker can prepare arbitrary certificate with CPS URI pointing to a local executable file or any URL, sign a document with it, and send it to the victim. When the victim opens the document in the application, the specified file will be executed (or webpage will be opened).
This issue was fixed in version 9.4.3.90.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"proCertum SmartSign","vendor":"Asseco","versions":[{"lessThan":"9.4.3.90","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:00f3a0dc73a9d94a511015278a782b634339e19709e93bedbdd5572b77c6ecc6 · sha256:95b290e154bbca84… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":4.6,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:00f3a0dc73a9d94a511015278a782b634339e19709e93bedbdd5572b77c6ecc6 · sha256:95b290e154bbca84… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-73","description":"CWE-73 External Control of File Name or Path","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:00f3a0dc73a9d94a511015278a782b634339e19709e93bedbdd5572b77c6ecc6 · sha256:95b290e154bbca84… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"tags":["third-party-advisory"],"url":"https://cert.pl/posts/2026/07/CVE-2026-57916"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:00f3a0dc73a9d94a511015278a782b634339e19709e93bedbdd5572b77c6ecc6 · sha256:95b290e154bbca84… · /containers/cna/references/0
{"tags":["product"],"url":"https://pomoc.certum.pl/pl/oprogramowanie/procertum-smartsign/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:00f3a0dc73a9d94a511015278a782b634339e19709e93bedbdd5572b77c6ecc6 · sha256:95b290e154bbca84… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.