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CVE-2026-33799

An Out-of-bounds Write vulnerability in the SNMP daemon (snmpd) of Juniper Networks Junos OS and Junos OS Evolved allows an authenticated network-based attacker sending specific valid SNMPv3 queries to trigger a memory leak. Over time, continuous receipt of these queries will result in snmpd process memory exhaustion, resulting in a process crash and restart, impacting the ability to monitor the system via SNMP. Memory usage can be monitored using the following command: user@device> show syste
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:719ee2bc24aae6ef3f2af6074e1341e30b3cda240b8b85d11c4593d7f1eba08a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Junos OS Evolved","vendor":"Juniper Networks","versions":[{"lessThan":"21.2R3-S8-EVO","status":"affected","version":"0","versionType":"custom"},{"lessThan":"21.4R3-S7-EVO","status":"affected","version":"21.4","versionType":"custom"},{"lessThan":"22.1*","status":"affected","version":"22.1","versionType":"custom"},{"lessThan":"22.2R3-S4-EVO","status":"affected","version":"22.2","versionType":"custom"},{"lessThan":"22.3R3-S3-EVO","status":"affected","version":"22.3","versionType":"custom"},{"lessThan":"22.4*","status":"affected","version":"22.4","versionTy…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2bd9a8ae2f57ee56d287440fbba555c8429021039bfa064c7cd0b8240c21637c · sha256:626fec32be57d09c… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"21.2R3-S8","status":"affected","version":"0","versionType":"custom"},{"lessThan":"21.4R3-S7","status":"affected","version":"21.4","versionType":"custom"},{"lessThan":"22.1R3-S6","status":"affected","version":"22.1","versionType":"custom"},{"lessThan":"22.2R3-S4","status":"affected","version":"22.2","versionType":"custom"},{"lessThan":"22.3R3-S3","status":"affected","version":"22.3","versionType":"custom"},{"lessThan":"22.4R3-S2","status":"affected","version":"22.4","versionType":"custom"},{"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2bd9a8ae2f57ee56d287440fbba555c8429021039bfa064c7cd0b8240c21637c · sha256:626fec32be57d09c… · /containers/cna/affected/0
cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2bd9a8ae2f57ee56d287440fbba555c8429021039bfa064c7cd0b8240c21637c · sha256:626fec32be57d09c… · /containers/cna/metrics/0/cvssV3_1

{"metric":{"Automatable":"YES","Recovery":"AUTOMATIC","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","providerUrgency":"GREEN","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"CONCENTRATED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/AU:Y/R:A/V:C/RE:M/U:Green","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityI…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2bd9a8ae2f57ee56d287440fbba555c8429021039bfa064c7cd0b8240c21637c · sha256:626fec32be57d09c… · /containers/cna/metrics/1/cvssV4_0

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Junos OS Evolved","vendor":"Juniper Networks","versions":[{"lessThan":"21.2R3-S8-EVO","status":"affected","version":"0","versionType":"custom"},{"lessThan":"21.4R3-S7-EVO","status":"affected","version":"21.4","versionType":"custom"},{"lessThan":"22.1*","status":"affected","version":"22.1","versionType":"custom"},{"lessThan":"22.2R3-S4-EVO","status":"affected","version":"22.2","versionType":"custom"},{"lessThan":"22.3R3-S3-EVO","status":"affected","version":"22.3","versionType":"custom"},{"lessThan":"22.4*","status":"affected","version":"22.4","versionTy…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2bd9a8ae2f57ee56d287440fbba555c8429021039bfa064c7cd0b8240c21637c · sha256:626fec32be57d09c… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"21.2R3-S8","status":"affected","version":"0","versionType":"custom"},{"lessThan":"21.4R3-S7","status":"affected","version":"21.4","versionType":"custom"},{"lessThan":"22.1R3-S6","status":"affected","version":"22.1","versionType":"custom"},{"lessThan":"22.2R3-S4","status":"affected","version":"22.2","versionType":"custom"},{"lessThan":"22.3R3-S3","status":"affected","version":"22.3","versionType":"custom"},{"lessThan":"22.4R3-S2","status":"affected","version":"22.4","versionType":"custom"},{"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2bd9a8ae2f57ee56d287440fbba555c8429021039bfa064c7cd0b8240c21637c · sha256:626fec32be57d09c… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2bd9a8ae2f57ee56d287440fbba555c8429021039bfa064c7cd0b8240c21637c · sha256:626fec32be57d09c… · /containers/cna/metrics/0/cvssV3_1
{"metric":{"Automatable":"YES","Recovery":"AUTOMATIC","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","providerUrgency":"GREEN","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"CONCENTRATED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/AU:Y/R:A/V:C/RE:M/U:Green","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityI…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2bd9a8ae2f57ee56d287440fbba555c8429021039bfa064c7cd0b8240c21637c · sha256:626fec32be57d09c… · /containers/cna/metrics/1/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2bd9a8ae2f57ee56d287440fbba555c8429021039bfa064c7cd0b8240c21637c · sha256:626fec32be57d09c… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["vendor-advisory"],"url":"https://supportportal.juniper.net/JSA110074"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2bd9a8ae2f57ee56d287440fbba555c8429021039bfa064c7cd0b8240c21637c · sha256:626fec32be57d09c… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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