FKIE_CVE-2025-59969
Vulnerability from fkie_nvd - Published: 2026-04-09 22:16 - Updated: 2026-04-28 20:18
Severity
Summary
A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart. Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition.
This issue affects Junos OS Evolved PTX Series:
* All versions before 22.4R3-S8-EVO,
* from 23.2 before 23.2R2-S5-EVO,
* from 23.4 before 23.4R2-EVO,
* from 24.2 before 24.2R2-EVO,
* from 24.4 before 24.4R2-EVO.
This issue affects Junos OS Evolved on QFX5000 Series:
* 22.2-EVO version before 22.2R3-S7-EVO,
* 22.4-EVO version before 22.4R3-S7-EVO,
* 23.2-EVO versions before 23.2R2-S4-EVO,
* 23.4-EVO versions before 23.4R2-S5-EVO,
* 24.2-EVO versions before 24.2R2-S1-EVO,
* 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.
This issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO.
References
| URL | Tags | ||
|---|---|---|---|
| sirt@juniper.net | https://kb.juniper.net/JSA103159 | Vendor Advisory |
Impacted products
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"value": "A Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027) vulnerability in the advanced forwarding toolkit (evo-aftmand/evo-pfemand) of Juniper Networks Junos OS Evolved on PTX Series or QFX5000 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).An attacker sending crafted multicast packets will cause line cards running evo-aftmand/evo-pfemand to crash and restart or non-line card devices to crash and restart.\u00a0Continued receipt and processing of these packets will sustain the Denial of Service (DoS) condition.\n\nThis issue affects Junos OS Evolved PTX Series:\n\n\n\n * All versions before 22.4R3-S8-EVO,\n * from 23.2 before 23.2R2-S5-EVO,\n * from 23.4 before 23.4R2-EVO,\n * from 24.2 before 24.2R2-EVO,\n * from 24.4 before\u00a024.4R2-EVO.\n\n\n\n\nThis issue affects Junos OS Evolved on QFX5000 Series:\n\n\n\n * 22.2-EVO version before 22.2R3-S7-EVO,\n * 22.4-EVO version before 22.4R3-S7-EVO,\n * 23.2-EVO versions before 23.2R2-S4-EVO,\n * 23.4-EVO versions before 23.4R2-S5-EVO, \n * 24.2-EVO versions before 24.2R2-S1-EVO,\n * 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.\n\n\nThis issue does not affect Junos OS Evolved on QFX5000 Series versions before: 21.2R2-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and 22.1R1-EVO."
}
],
"id": "CVE-2025-59969",
"lastModified": "2026-04-28T20:18:35.763",
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"published": "2026-04-09T22:16:24.100",
"references": [
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"source": "sirt@juniper.net",
"tags": [
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"url": "https://kb.juniper.net/JSA103159"
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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