How severe is CVE-2016-10511?

CVE-2016-10511 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2016-10511 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-10511?

CVE-2016-10511 primarily affects Twitter. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-10511?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-10511 published?

CVE-2016-10511 was published on 2017-09-18 and last updated on 2026-06-17.

CVE-2016-10511

CVE-2016-10511 is a medium-severity vulnerability in Twitter with a CVSS 3.x base score of 5.9. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Twitter
Published: 2017-09-18
Last modified: 2026-06-17

Description

The Twitter iOS client versions 6.62 and 6.62.1 fail to validate Twitter's server certificates for the /1.1/help/settings.json configuration endpoint, permitting man-in-the-middle attackers the ability to view an application-only OAuth client token and potentially enable unreleased Twitter iOS app features.

Frequently asked questions

What is CVE-2016-10511?: The Twitter iOS client versions 6.62 and 6.62.1 fail to validate Twitter's server certificates for the /1.1/help/settings.json configuration endpoint, permitting man-in-the-middle attackers the ability to view an application-only OAuth client token and potentially enable unreleased Twitter iOS app features.
How severe is CVE-2016-10511?: CVE-2016-10511 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2016-10511 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-10511?: CVE-2016-10511 primarily affects Twitter. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-10511?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-10511 published?: CVE-2016-10511 was published on 2017-09-18 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:twitter:twitter:6.62:*:*:*:*:iphone_os:*:*
cpe:2.3:a:twitter:twitter:6.62.1:*:*:*:*:iphone_os:*:*

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