How severe is CVE-2017-11521?

CVE-2017-11521 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-2017-11521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11521?

CVE-2017-11521 primarily affects Resiprocate. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-11521?

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-2017-11521 published?

CVE-2017-11521 was published on 2017-07-22 and last updated on 2026-06-17.

CVE-2017-11521

CVE-2017-11521 is a high-severity vulnerability in Resiprocate 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Resiprocate
Published: 2017-07-22
Last modified: 2026-06-17

Description

The SdpContents::Session::Medium::parse function in resip/stack/SdpContents.cxx in reSIProcate 1.10.2 allows remote attackers to cause a denial of service (memory consumption) by triggering many media connections.

Frequently asked questions

What is CVE-2017-11521?: The SdpContents::Session::Medium::parse function in resip/stack/SdpContents.cxx in reSIProcate 1.10.2 allows remote attackers to cause a denial of service (memory consumption) by triggering many media connections.
How severe is CVE-2017-11521?: CVE-2017-11521 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-2017-11521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11521?: CVE-2017-11521 primarily affects Resiprocate. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-11521?: 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-2017-11521 published?: CVE-2017-11521 was published on 2017-07-22 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:resiprocate:resiprocate:1.10.2:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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