How severe is CVE-2016-10091?

CVE-2016-10091 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-10091 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-10091?

CVE-2016-10091 affects Unrtf Project Unrtf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-10091?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-10091 published?

CVE-2016-10091 was published on 2017-04-21 and last updated on 2026-06-17.

CVE-2016-10091

CVE-2016-10091 is a high-severity vulnerability in Unrtf Project Unrtf with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Unrtf Project Unrtf
Published: 2017-04-21
Last modified: 2026-06-17

Description

Multiple stack-based buffer overflows in unrtf 0.21.9 allow remote attackers to cause a denial-of-service by writing a negative integer to the (1) cmd_expand function, (2) cmd_emboss function, or (3) cmd_engrave function.

Frequently asked questions

What is CVE-2016-10091?: Multiple stack-based buffer overflows in unrtf 0.21.9 allow remote attackers to cause a denial-of-service by writing a negative integer to the (1) cmd_expand function, (2) cmd_emboss function, or (3) cmd_engrave function.
How severe is CVE-2016-10091?: CVE-2016-10091 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-10091 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-10091?: CVE-2016-10091 affects Unrtf Project Unrtf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-10091?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-10091 published?: CVE-2016-10091 was published on 2017-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:unrtf_project:unrtf:0.21.9:*:*:*:*:*:*:*

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