How severe is CVE-2016-1269?

CVE-2016-1269 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-2016-1269 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1269?

CVE-2016-1269 primarily affects Juniper Junos. In total, 72 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1269?

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-2016-1269 published?

CVE-2016-1269 was published on 2016-04-15 and last updated on 2026-06-17.

CVE-2016-1269

CVE-2016-1269 is a high-severity vulnerability in Juniper Junos 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-399.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Juniper Junos
Published: 2016-04-15
Last modified: 2026-06-17

Description

Juniper Junos OS before 12.1X44-D60, 12.1X46 before 12.1X46-D40, 12.1X47 before 12.1X47-D30, 12.3 before 12.3R11, 12.3X48 before 12.3X48-D20, 13.2 before 13.2R9, 13.2X51 before 13.2X51-D39, 13.3 before 13.3R8, 14.1 before 14.1R6, 14.1X53 before 14.1X53-D30, 14.2 before 14.2R4-S1, 15.1 before 15.1R2, 15.1X49 before 15.1X49-D30, and 16.1 before 16.1R1 allow remote attackers to cause a denial of service (socket consumption) via crafted TCP timestamps.

Frequently asked questions

What is CVE-2016-1269?: Juniper Junos OS before 12.1X44-D60, 12.1X46 before 12.1X46-D40, 12.1X47 before 12.1X47-D30, 12.3 before 12.3R11, 12.3X48 before 12.3X48-D20, 13.2 before 13.2R9, 13.2X51 before 13.2X51-D39, 13.3 before 13.3R8, 14.1 before 14.1R6, 14.1X53 before 14.1X53-D30, 14.2 before 14.2R4-S1, 15.1 before 15.1R2, 15.1X49 before 15.1X49-D30, and 16.1 before 16.1R1 allow remote attackers to cause a denial of service (socket consumption) via crafted TCP timestamps.
How severe is CVE-2016-1269?: CVE-2016-1269 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-2016-1269 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1269?: CVE-2016-1269 primarily affects Juniper Junos. In total, 72 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1269?: 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-2016-1269 published?: CVE-2016-1269 was published on 2016-04-15 and last updated on 2026-06-17.

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10736

Affected products (72)

cpe:2.3:o:juniper:junos:*:d55:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d20:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d25:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d30:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x46:d35:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:d20:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x47:d25:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3:r9:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:r4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:r5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:r6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:r7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:r7-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:r7-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2:r8:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2x51:d15:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2x51:d20:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:13.2x51:d21:*:*:*:*:*:*

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