# CVE-2026-33782: A Missing Release of Memory after Effective Lifetime vulnerability in the DHCP daemon (jdhcpd) of Juniper Networks…

Source: https://junglewise.ai/threats/cve-2026-33782-a-missing-release-of-memory-after-effective-lifetime  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-09  
License: CC BY 4.0 with a link back

CVE-2026-33782 · Severity: medium · CVSS 6.5 · Published 2026-04-09

A Missing Release of Memory after Effective Lifetime vulnerability in the DHCP daemon (jdhcpd) of Juniper Networks Junos OS on MX Series, allows an adjacent, unauthenticated attacker to cause a memory leak, that will eventually cause a complete Denial-of-Service (DoS).

In a DHCPv6 over PPPoE, or DHCPv6 over VLAN with Active lease query or Bulk lease query scenario, every subscriber logout will leak a small amount of memory. When all available memory has been exhausted, jdhcpd will crash and restart which causes a complete service impact until the process has recovered.

The memory usage of jdhcpd can be monitored with:

user@host> show system processes extensive | match jdhcpd



This issue affects Junos OS:

  *  all versions before 22.4R3-S1,
  *  23.2 versions before 23.2R2,
  *  23.4 versions before 23.4R2.

Technologies: [Juniper Junos](https://junglewise.ai/threats/technologies/junos), [Juniper Mx10004](https://junglewise.ai/threats/technologies/mx10004), [Juniper Mx10008](https://junglewise.ai/threats/technologies/mx10008), [Juniper Mx2008](https://junglewise.ai/threats/technologies/mx2008), [Juniper Mx2010](https://junglewise.ai/threats/technologies/mx2010), [Juniper Mx2020](https://junglewise.ai/threats/technologies/mx2020), [Juniper Mx204](https://junglewise.ai/threats/technologies/mx204), [Juniper Mx240](https://junglewise.ai/threats/technologies/mx240), [Juniper Mx301](https://junglewise.ai/threats/technologies/mx301), [Juniper Mx304](https://junglewise.ai/threats/technologies/mx304), [Juniper Mx480](https://junglewise.ai/threats/technologies/mx480), [Juniper Mx960](https://junglewise.ai/threats/technologies/mx960). Vendors: [Juniper](https://junglewise.ai/threats/vendors/juniper).

## Quick answers

**Is CVE-2026-33782 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33782 being exploited in the wild.

**How severe is CVE-2026-33782?** Medium severity, with a CVSS score of 6.5, published 9 April 2026.

**Which products and versions are affected?** Juniper Junos, Juniper Mx10004, Juniper Mx10008, Juniper Mx2008 and 8 more. The advisory does not name versions.

**Is there a fix for CVE-2026-33782?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-33782?** Check whether you run Juniper Junos, Juniper Mx10004, Juniper Mx10008 or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Juniper Junos
- Juniper Mx10004
- Juniper Mx10008
- Juniper Mx2008
- Juniper Mx2010
- Juniper Mx2020
- Juniper Mx204
- Juniper Mx240
- Juniper Mx301
- Juniper Mx304
- Juniper Mx480
- Juniper Mx960

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