How severe is CVE-2013-4685?

CVE-2013-4685 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2013-4685 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4685?

CVE-2013-4685 primarily affects Juniper Junos. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4685?

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

When was CVE-2013-4685 published?

CVE-2013-4685 was published on 2013-07-11 and last updated on 2026-06-16.

CVE-2013-4685

CVE-2013-4685 is a critical-severity vulnerability in Juniper Junos with a CVSS 2.0 base score of 10.0. 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: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Juniper Junos
Published: 2013-07-11
Last modified: 2026-06-16

Description

Buffer overflow in flowd in Juniper Junos 10.4 before 10.4S14, 11.4 before 11.4R7, 12.1 before 12.1R6, and 12.1X44 before 12.1X44-D15 on SRX devices, when Captive Portal is enabled with the UAC enforcer role, allows remote attackers to execute arbitrary code via crafted HTTP requests, aka PR 849100.

Frequently asked questions

What is CVE-2013-4685?: Buffer overflow in flowd in Juniper Junos 10.4 before 10.4S14, 11.4 before 11.4R7, 12.1 before 12.1R6, and 12.1X44 before 12.1X44-D15 on SRX devices, when Captive Portal is enabled with the UAC enforcer role, allows remote attackers to execute arbitrary code via crafted HTTP requests, aka PR 849100.
How severe is CVE-2013-4685?: CVE-2013-4685 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2013-4685 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4685?: CVE-2013-4685 primarily affects Juniper Junos. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4685?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2013-4685 published?: CVE-2013-4685 was published on 2013-07-11 and last updated on 2026-06-16.

References

Affected products (16)

cpe:2.3:o:juniper:junos:10.4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:11.4:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:12.1x44:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx100:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx110:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx1400:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx210:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx220:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx240:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx3400:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx3600:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx550:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx5600:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx5800:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:srx650:-:*:*:*:*:*:*:*

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